/* ==========================================================================
   Hasan Ahmed | Professional Digital Marketer - Modern Stylesheet (2026)
   ========================================================================== */

/* --- 1. CSS Variables & Theming --- */
:root {
    /* Color Tokens - Light Defaults */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --bg-glass-card: rgba(255, 255, 255, 0.75);
    --border-color: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(99, 102, 241, 0.35);

    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;

    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-glow: rgba(79, 70, 229, 0.25);
    --primary-rgb: 79, 70, 229;

    --accent-cyan: #0891b2;
    --accent-emerald: #059669;
    --accent-amber: #d97706;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.1), 0 10px 15px -3px rgba(15, 23, 42, 0.05);
    --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.15);

    --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Tokens */
[data-theme="dark"] {
    --bg-body: #090d16;
    --bg-surface: #0f172a;
    --bg-surface-elevated: #1e293b;
    --bg-glass: rgba(15, 23, 42, 0.88);
    --bg-glass-card: rgba(30, 41, 59, 0.65);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.5);

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-light: #64748b;

    --primary: #6366f1;
    --primary-hover: #818cf8;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --primary-rgb: 99, 102, 241;

    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 30px -5px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 20px 45px -10px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 50px rgba(99, 102, 241, 0.25);
}

/* --- 2. CSS Reset & Base Elements --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-main);
    background-color: var(--bg-body);
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); }
h4 { font-size: 1.2rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}
p:last-child {
    margin-bottom: 0;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

/* Accessibility Focus Ring */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 20px;
    background: var(--primary);
    color: #fff;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    z-index: 100000;
    transition: top var(--transition-fast);
    font-weight: 600;
}
.skip-link:focus {
    top: 20px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Container */
.container {
    width: 100%;
    max-width: 1240px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* Section Common */
.section {
    padding: 90px 0;
    position: relative;
}
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 50px;
}
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--primary-glow);
    color: var(--primary);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.section-title {
    margin-bottom: 16px;
}
.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* --- 3. Buttons & Component Styles --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 26px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.btn-sm {
    padding: 8px 18px;
    font-size: 0.88rem;
}
.btn-lg {
    padding: 16px 34px;
    font-size: 1.05rem;
}
.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff !important;
    box-shadow: 0 4px 18px var(--primary-glow);
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--primary-glow);
}

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-surface);
}

.btn .btn-loader {
    display: none;
}
.btn.loading .btn-text {
    display: none;
}
.btn.loading .btn-loader {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* --- 4. Top Bar & Sticky Header --- */
.top-bar {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    padding: 8px 0;
    transition: background var(--transition-base);
}
.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-bar-left {
    display: flex;
    align-items: center;
    gap: 22px;
}
.top-bar-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}
.top-bar-item:hover {
    color: var(--primary);
}
.social-links {
    display: flex;
    align-items: center;
    gap: 12px;
}
.social-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface-elevated);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}
.social-icon:hover {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 0;
    transition: all var(--transition-base);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}
.brand-logo .logo-img {
    border-radius: var(--radius-sm);
    object-fit: cover;
}
.brand-text {
    display: flex;
    flex-direction: column;
}
.brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    line-height: 1.1;
}
.brand-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.desktop-nav .nav-list {
    display: flex;
    align-items: center;
    gap: 28px;
}
.desktop-nav .nav-link {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 6px 0;
    position: relative;
    transition: color var(--transition-fast);
}
.desktop-nav .nav-link:hover,
.desktop-nav .nav-link.active {
    color: var(--primary);
}
.desktop-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.theme-toggle-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}
.theme-toggle-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
}
[data-theme="dark"] .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: block; color: #f59e0b; }
[data-theme="light"] .theme-icon-dark { display: block; color: #4f46e5; }
[data-theme="light"] .theme-icon-light { display: none; }

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px;
}
.hamburger-bar {
    width: 100%;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: transform var(--transition-fast);
}

/* --- 5. Mobile Drawer --- */
.mobile-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}
.mobile-drawer-overlay.active {
    opacity: 1;
    visibility: visible;
}
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100%;
    background: var(--bg-surface);
    border-left: 1px solid var(--border-color);
    z-index: 1999;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: right var(--transition-base);
    overflow-y: auto;
}
.mobile-drawer.active {
    right: 0;
}
.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}
.drawer-close-btn {
    background: transparent;
    border: none;
    font-size: 1.4rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}
.mobile-nav-list {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.mobile-nav-link {
    display: block;
    padding: 10px 14px;
    color: var(--text-main);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}
.mobile-nav-link:hover, .mobile-nav-link.active {
    background: var(--primary-glow);
    color: var(--primary);
}
.drawer-footer {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}
.drawer-contact-info {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 0.85rem;
}
.drawer-contact-item {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- 6. Hero Section --- */
.hero-section {
    padding: 90px 0 100px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 10% 20%, rgba(var(--primary-rgb), 0.12) 0%, transparent 50%),
                radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 50px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--primary-glow);
    border: 1px solid var(--border-hover);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 0 20px var(--primary-glow);
}
.hero-title {
    margin-bottom: 20px;
    font-weight: 800;
}
.hero-title .gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-description {
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 600px;
}
.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 40px;
}

/* Quick Lead Capture Bar */
.hero-quick-form {
    background: var(--bg-glass-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    max-width: 580px;
}
.quick-form-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
}
.quick-form-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr 1.1fr auto;
    gap: 10px;
}
.quick-form-inputs input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
}
.quick-form-inputs input:focus {
    border-color: var(--primary);
}

/* Hero Profile Visual & Floating Glass Badges */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-image-wrapper {
    position: relative;
    max-width: 380px;
    z-index: 2;
}
.hero-profile-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    filter: blur(40px);
    z-index: 1;
}
.hero-profile-img {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.35));
    border-radius: var(--radius-lg);
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 14px;
    z-index: 3;
    animation: floatSlow 4s ease-in-out infinite alternate;
}
.badge-top-left {
    top: 10%;
    left: -25px;
}
.badge-bottom-right {
    bottom: 8%;
    right: -20px;
    animation-delay: 2s;
}
.badge-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.badge-icon.indigo { background: rgba(99, 102, 241, 0.18); color: var(--primary); }
.badge-icon.emerald { background: rgba(16, 185, 129, 0.18); color: var(--accent-emerald); }
.badge-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.2;
}
.badge-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
}

@keyframes floatSlow {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-10px); }
}

/* --- 7. Arsenal / Tech Stack Marquee --- */
.arsenal-section {
    padding: 35px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
}
.arsenal-label {
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.arsenal-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 32px;
}
.arsenal-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.95rem;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
}
.arsenal-item i {
    color: var(--primary);
}

/* --- 8. About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
    align-items: center;
}
.about-image-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-surface-elevated);
}
.about-image-card img {
    width: 100%;
    height: auto;
    object-fit: cover;
}
.about-quote-box {
    padding: 24px;
    background: var(--bg-glass-card);
    border-top: 1px solid var(--border-color);
}
.about-quote-box blockquote {
    font-style: italic;
    color: var(--text-main);
    font-weight: 500;
    font-size: 0.98rem;
    line-height: 1.6;
}
.about-content .lead {
    font-size: 1.15rem;
    color: var(--text-main);
    font-weight: 600;
    margin-bottom: 18px;
}
.skills-bars {
    margin: 30px 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.skill-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.skill-progress-track {
    width: 100%;
    height: 8px;
    background: var(--bg-surface-elevated);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.skill-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
    border-radius: var(--radius-full);
}

/* --- 9. Services Grid --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 28px;
}
.service-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition-base);
    position: relative;
}
.service-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.service-card.popular {
    border-color: var(--primary);
    background: linear-gradient(180deg, var(--primary-glow) 0%, var(--bg-surface) 30%);
}
.service-popular-badge {
    position: absolute;
    top: 18px;
    right: 18px;
    background: var(--primary);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}
.service-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 22px;
    border: 1px solid var(--border-hover);
}
.service-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
}
.service-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}
.service-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 26px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}
.service-features li {
    font-size: 0.88rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
}
.service-features li i {
    color: var(--accent-emerald);
    font-size: 0.85rem;
}
.service-card-action {
    margin-top: auto;
}

/* --- 10. 4-Step Growth Process --- */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}
.process-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    position: relative;
    transition: all var(--transition-fast);
}
.process-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}
.process-step-num {
    font-size: 2.2rem;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--primary);
    opacity: 0.35;
    line-height: 1;
    margin-bottom: 14px;
}
.process-title {
    font-size: 1.15rem;
    margin-bottom: 10px;
}
.process-desc {
    font-size: 0.88rem;
}

/* --- 11. Counters / Stats Section --- */
.stats-section {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 60px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.stat-card {
    padding: 20px;
}
.stat-number {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
    display: inline-block;
}
.stat-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
}
.stat-sub {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* --- 12. Interactive Marketing ROI Calculator --- */
.calculator-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    max-width: 1050px;
    margin: 0 auto;
}
.calc-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
}
.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 26px;
}
.calc-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.calc-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 0.95rem;
}
.calc-val-badge {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.95rem;
}
.calc-range {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-elevated);
    outline: none;
    accent-color: var(--primary);
    cursor: pointer;
}
.tier-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}
.tier-btn {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all var(--transition-fast);
}
.tier-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* Calculator Results Box */
.calc-results-box {
    background: linear-gradient(145deg, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-md);
    padding: 32px 26px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-glow);
}
.calc-result-metric {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}
.calc-result-metric:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.res-label {
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}
.res-val {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-main);
}
.res-val.highlight {
    color: var(--accent-emerald);
    font-size: 2.6rem;
}
.calc-disclaimer {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* --- 13. Case Studies & Testimonials --- */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}
.case-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--transition-fast), border-color var(--transition-fast);
}
.case-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
}
.case-tag {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 10px;
}
.case-title {
    font-size: 1.25rem;
    margin-bottom: 14px;
}
.case-metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    background: var(--bg-surface-elevated);
    padding: 14px;
    border-radius: var(--radius-sm);
    margin: 20px 0;
    text-align: center;
}
.case-m-val {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-cyan);
}
.case-m-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}
.testimonial-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.testi-stars {
    color: var(--accent-amber);
    font-size: 0.95rem;
    margin-bottom: 16px;
    display: flex;
    gap: 4px;
}
.testi-text {
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--text-main);
    margin-bottom: 24px;
    font-style: italic;
}
.testi-author {
    display: flex;
    align-items: center;
    gap: 14px;
}
.testi-avatar {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-full);
    background: var(--primary-glow);
    color: var(--primary);
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-hover);
}
.testi-name {
    font-weight: 700;
    font-size: 0.98rem;
    color: var(--text-main);
}
.testi-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- 14. Blog Cards & Single Article --- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}
.blog-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all var(--transition-fast);
}
.blog-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.blog-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.blog-category-badge {
    padding: 3px 10px;
    background: var(--primary-glow);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.78rem;
}
.blog-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
    line-height: 1.4;
}
.blog-excerpt {
    font-size: 0.92rem;
    margin-bottom: 20px;
}
.blog-card-link {
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
}

/* Single Blog Layout */
.article-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 50px 20px 80px;
}
.article-header {
    margin-bottom: 36px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}
.article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin: 16px 0;
}
.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-main);
}
.article-body p {
    margin-bottom: 1.6rem;
}
.article-body h2, .article-body h3 {
    margin: 2.2rem 0 1.2rem;
}
.article-body ul, .article-body ol {
    margin-bottom: 1.6rem;
    padding-left: 24px;
}
.article-body ul li {
    list-style-type: disc;
    margin-bottom: 8px;
}
.article-body ol li {
    list-style-type: decimal;
    margin-bottom: 8px;
}
.article-body blockquote {
    margin: 2.2rem 0;
    padding: 20px 28px;
    background: var(--bg-surface);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
}

/* --- 15. Forms & Inputs --- */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
}
.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
}
.form-label .required {
    color: #ef4444;
}
.input-icon-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.input-icon-wrap .input-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}
.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.input-icon-wrap .form-control {
    padding-left: 42px;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    outline: none;
}
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 18px;
    cursor: pointer;
}
textarea.form-control {
    resize: vertical;
}
.honeypot-field {
    display: none !important;
    visibility: hidden !important;
}

.form-feedback {
    margin: 14px 0;
    font-size: 0.9rem;
    font-weight: 600;
}
.form-feedback.success {
    color: var(--accent-emerald);
    padding: 10px 14px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-sm);
}
.form-feedback.error {
    color: #ef4444;
    padding: 10px 14px;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
}

/* --- 16. Contact Page Layout & Map --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
}
.contact-form-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 36px;
}
.contact-info-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.info-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 18px;
}
.info-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--primary-glow);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.info-text h4 {
    margin-bottom: 4px;
}
.info-text p, .info-text a {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.map-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
}
.map-preview {
    height: 200px;
    background: var(--bg-surface-elevated);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border: 1px dashed var(--border-color);
    margin-top: 14px;
    text-align: center;
    padding: 16px;
}

/* --- 17. Modals --- */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}
.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}
.modal-dialog {
    width: 100%;
    max-width: 640px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: scale(0.95) translateY(10px);
    transition: transform var(--transition-base);
}
.modal-backdrop.active .modal-dialog {
    transform: scale(1) translateY(0);
}
.modal-content {
    padding: 32px;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}
.modal-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    display: block;
    margin-bottom: 4px;
}
.modal-title {
    font-size: 1.5rem;
}
.modal-close-btn {
    background: transparent;
    border: none;
    font-size: 1.4rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}
.modal-close-btn:hover {
    color: var(--text-main);
}
.modal-desc {
    font-size: 0.95rem;
    margin-bottom: 20px;
}
.form-privacy-note {
    font-size: 0.8rem;
    color: var(--text-light);
    text-align: center;
    margin-top: 12px;
}

/* --- 18. Footer & Floating Buttons --- */
.site-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
}
.footer-cta-strip {
    background: linear-gradient(135deg, var(--primary) 0%, #312e81 100%);
    padding: 60px 0;
    color: #ffffff;
}
.footer-cta-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}
.footer-cta-text .cta-subtitle {
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    font-weight: 700;
    opacity: 0.9;
    display: block;
    margin-bottom: 8px;
}
.footer-cta-text .cta-title {
    color: #ffffff;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 10px;
}
.footer-cta-text .cta-desc {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.05rem;
}
.footer-cta-action {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}
.footer-cta-action .btn-primary {
    background: #ffffff;
    color: var(--primary) !important;
}
.footer-cta-action .btn-primary:hover {
    background: #f1f5f9;
}
.footer-cta-action .btn-outline {
    border-color: rgba(255, 255, 255, 0.4);
    color: #ffffff;
}

.footer-main {
    padding: 70px 20px 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr 1.3fr;
    gap: 40px;
    margin-bottom: 50px;
}
.footer-col-brand .footer-brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.footer-bio {
    font-size: 0.92rem;
    margin-bottom: 20px;
    line-height: 1.6;
}
.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 0.9rem;
    margin-bottom: 20px;
}
.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
}
.footer-contact-item a {
    color: var(--text-muted);
}
.footer-contact-item a:hover {
    color: var(--primary);
}
.footer-heading {
    font-size: 1.15rem;
    margin-bottom: 20px;
    color: var(--text-main);
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.footer-links a {
    color: var(--text-muted);
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform var(--transition-fast);
}
.footer-links a:hover {
    color: var(--primary);
    transform: translateX(4px);
}
.footer-col-newsletter .newsletter-desc {
    font-size: 0.9rem;
    margin-bottom: 16px;
}
.newsletter-input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}
.newsletter-privacy {
    font-size: 0.78rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}
.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
    color: var(--text-muted);
}

/* Floating WhatsApp */
.floating-whatsapp-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 56px;
    height: 56px;
    background: #25d366;
    color: #ffffff;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all var(--transition-fast);
}
.floating-whatsapp-btn:hover {
    transform: scale(1.08);
    color: #fff;
}
.whatsapp-tooltip {
    position: absolute;
    left: 68px;
    background: var(--bg-surface);
    color: var(--text-main);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}
.floating-whatsapp-btn:hover .whatsapp-tooltip {
    opacity: 1;
}

/* Back to Top */
.back-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}
.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top-btn:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-3px);
}

/* Toast Notifications Container */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 360px;
}
.toast {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.92rem;
    animation: toastSlideIn 0.3s ease forwards;
}
.toast.success { border-left: 4px solid var(--accent-emerald); }
.toast.error { border-left: 4px solid #ef4444; }
.toast-icon { font-size: 1.2rem; }
.toast.success .toast-icon { color: var(--accent-emerald); }
.toast.error .toast-icon { color: #ef4444; }

@keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

/* --- 19. Responsive Media Queries --- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-cta-group {
        justify-content: center;
    }
    .hero-quick-form {
        margin-left: auto;
        margin-right: auto;
    }
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-cta-inner {
        flex-direction: column;
        text-align: center;
    }
    .footer-cta-action {
        justify-content: center;
    }
    .calc-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    .desktop-nav, .header-cta {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    .quick-form-inputs {
        grid-template-columns: 1fr;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .floating-badge {
        position: static;
        margin: 10px auto;
        width: 100%;
        max-width: 280px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom-inner {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    .process-grid, .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* --- 20. Reduced Motion Support (Accessibility) --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .floating-badge {
        animation: none !important;
    }
}