/* FILE: code/styles.css */
/* 
 * remoteyon Global IT Operations
 * Clean, professional design for C-level audiences
 */

/* CSS Variables for Light Theme */
:root {
    /* Professional Color Palette */
    --primary-color: #0f4c81;
    --primary-dark: #083354;
    --primary-light: #3f7bb0;
    --secondary-color: #111827;
    --accent-color: #0d9488;
    
    /* Background Colors */
    --bg-main: #f3f4f6;
    --bg-surface: #ffffff;
    --bg-muted: #f9fafb;
    --bg-header: #ffffff;
    --bg-footer: #020617;
    
    /* Text Colors */
    --text-main: #0b1120;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --text-inverse: #f9fafb;
    
    /* Border Colors */
    --border-color: #e5e7eb;
    --border-subtle: #d1d5db;
    
    /* Spacing (4/8px scale) */
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    
    /* Typography */
    --font-primary: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Radius & Shadow */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.18);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 220ms ease-out;
}

/* Dark Theme: tighter, solid background, explicit text colors */
[data-theme="dark"] {
    --primary-color: #60a5fa;
    --primary-dark: #2563eb;
    --primary-light: #93c5fd;
    --secondary-color: #e5e7eb;
    --accent-color: #22c55e;

    --bg-main: #020617;
    --bg-surface: #020617;
    --bg-muted: #020617;
    --bg-header: #020617;
    --bg-footer: #000000;

    --text-main: #e5e7eb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --text-inverse: #020617;

    --border-color: #111827;
    --border-subtle: #1f2937;

    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.5);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.7);
    --shadow-md: 0 8px 20px rgba(15, 23, 42, 0.85);
    --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.95);
}

/* Base Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-main);
    background: radial-gradient(circle at top left, #e5f0ff 0, #f3f4f6 45%, #e5f4ff 100%);
    background-attachment: fixed;
    transition: background-color var(--transition-normal), color var(--transition-normal), background var(--transition-normal);
}

/* Dark body background override: remove light gradient */
[data-theme="dark"] body {
    background: radial-gradient(circle at top left, #020617 0, #020617 45%, #020617 100%);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 650;
    line-height: 1.2;
    margin: 0 0 var(--spacing-4);
    color: var(--text-main);
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.3rem, 3vw, 2.8rem);
}

h2 {
    font-size: clamp(1.8rem, 2.4vw, 2.1rem);
}

h3 {
    font-size: clamp(1.35rem, 1.7vw, 1.5rem);
}

h4 {
    font-size: var(--font-size-xl);
}

p {
    margin: 0 0 var(--spacing-4);
    color: var(--text-secondary);
    font-size: var(--font-size-md);
}

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

a:hover {
    color: var(--primary-dark);
}

/* Lists */
ul, ol {
    margin: 0 0 var(--spacing-4);
    padding-left: 1.25rem;
}

li {
    margin-bottom: var(--spacing-2);
    color: var(--text-secondary);
}

/* Layout Containers */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-12) var(--spacing-4) var(--spacing-16);
}

/* Sections */
section {
    margin-bottom: var(--spacing-10);
    padding: var(--spacing-8);
    background-color: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(148, 163, 184, 0.22);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.4);
    box-shadow: var(--shadow-xs);
}

[data-theme="dark"] .site-header {
    background: rgba(15, 23, 42, 0.96);
    border-bottom-color: #020617;
}

.header-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    height: 64px;
}

#theme-logo {
    height: 46px;
    width: auto;
    object-fit: contain;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

/* Language Switcher */
.language-switcher select {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--text-secondary);
    cursor: pointer;
    appearance: none;
    outline: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%), 
                      linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
    background-position: calc(100% - 12px) 55%, calc(100% - 7px) 55%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

/* Dark theme language switcher: dark surface, light text */
[data-theme="dark"] .language-switcher select {
    background-color: #020617;
    border-color: #1f2937;
    color: #e5e7eb;
    background-image: linear-gradient(45deg, transparent 50%, #9ca3af 50%), 
                      linear-gradient(135deg, #9ca3af 50%, transparent 50%);
}

.language-switcher select:hover,
.language-switcher select:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.15);
}

/* Theme Toggle */
.theme-toggle {
    border-radius: 999px;
    border: 1px solid var(--border-subtle);
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-secondary);
    background: radial-gradient(circle at 30% 20%, #ffffff, #e5e7eb);
    box-shadow: var(--shadow-xs);
    transition: all var(--transition-fast);
}

[data-theme="dark"] .theme-toggle {
    background: radial-gradient(circle at 30% 20%, #111827, #020617);
    border-color: #1f2937;
    color: #e5e7eb;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

/* Hero */
.hero-section {
    padding: var(--spacing-10);
    background: radial-gradient(circle at top left, rgba(15, 76, 129, 0.08), transparent 55%), var(--bg-surface);
    position: relative;
    overflow: hidden;
}

/* Dark hero: remove bright accents, keep subtle vignette */
[data-theme="dark"] .hero-section {
    background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.9), #020617);
}

.hero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 10%, rgba(14, 165, 233, 0.18), transparent 55%);
    opacity: 0.7;
    pointer-events: none;
}

[data-theme="dark"] .hero-section::before {
    background: radial-gradient(circle at 85% 10%, rgba(37, 99, 235, 0.4), transparent 55%);
    opacity: 0.65;
}

.hero-section > * {
    position: relative;
    z-index: 1;
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.4fr);
    gap: var(--spacing-10);
    align-items: flex-start;
}

.hero-kicker {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-3);
}

.hero-section h1 {
    margin-bottom: var(--spacing-4);
}

.hero-section .subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 40rem;
    margin-bottom: var(--spacing-6);
}

.hero-bullets p {
    margin-bottom: var(--spacing-3);
}

.hero-bullets ul {
    margin-bottom: var(--spacing-3);
}

.hero-cta-row {
    margin-top: var(--spacing-6);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.hero-supporting-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Hero Aside Card */
.hero-aside {
    display: flex;
    justify-content: flex-end;
}

.hero-aside-card {
    background: linear-gradient(145deg, rgba(15, 76, 129, 0.98), #020617);
    color: var(--text-inverse);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(148, 163, 184, 0.35);
    max-width: 340px;
}

/* Explicit text colors so they stay readable in dark mode */
.hero-aside-card h2 {
    color: #e5e7eb;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-4);
}

.hero-aside-card ul {
    padding-left: 1.1rem;
}

.hero-aside-card li {
    color: #f3f4f6;
}

/* CTA Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #ffffff;
    padding: 0.85rem 1.75rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: var(--font-size-md);
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.28);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

/* Keep white text on hover in both themes */
.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    color: #ffffff;
}

/* Secondary CTA */
.cta-button.secondary {
    background: transparent;
    color: var(--primary-color);
    border: 1.5px solid rgba(15, 76, 129, 0.4);
    box-shadow: none;
    padding-inline: 1.6rem;
}

[data-theme="dark"] .cta-button.secondary {
    color: #e5e7eb;
    border-color: rgba(148, 163, 184, 0.7);
}

.cta-button.secondary:hover {
    background: rgba(15, 76, 129, 0.06);
    box-shadow: none;
}

/* Inline link emphasis */
.inline-link {
    font-weight: 500;
    border-bottom: 1px solid rgba(15, 76, 129, 0.25);
}

.inline-link:hover {
    border-bottom-color: rgba(15, 76, 129, 0.6);
}

/* Social Proof Section */
.social-proof-section {
    padding-top: var(--spacing-8);
    padding-bottom: var(--spacing-8);
}

.social-proof-section h2 {
    text-align: center;
    margin-bottom: var(--spacing-8);
    max-width: 44rem;
    margin-left: auto;
    margin-right: auto;
}

/* Testimonials Grid */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-6);
}

/* Base testimonial background for both themes */
.testimonial {
    padding: var(--spacing-5);
    background-color: var(--bg-muted);
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.4);
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal), background-color var(--transition-normal);
}

/* Light theme testimonial hover */
.testimonial:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(59, 130, 246, 0.6);
    background-color: #ffffff;
}

/* Dark theme testimonial hover: keep dark card */
[data-theme="dark"] .testimonial {
    background-color: #020617;
    border-color: #1f2937;
}

[data-theme="dark"] .testimonial:hover {
    background-color: #020617;
    border-color: #3b82f6;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.95);
}

.testimonial-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.testimonial h3 {
    font-size: var(--font-size-md);
    color: var(--primary-color);
}

[data-theme="dark"] .testimonial h3 {
    color: #93c5fd;
}

.testimonial-thumb {
    width: 68px;
    height: 68px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.7);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.testimonial-thumb:hover {
    transform: scale(1.03);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

blockquote {
    margin: 0;
    padding-left: var(--spacing-4);
    border-left: 2px solid rgba(148, 163, 184, 0.9);
    font-style: italic;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}


/* Testimonial Carousel */

.testimonial-carousel {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.carousel-window {
    overflow: hidden;
    flex: 1;
}

.carousel-track {
    display: flex;
    transition: transform 260ms ease-out;
    will-change: transform;
}

/* Each slide width depends on viewport */
.carousel-track .testimonial {
    flex: 0 0 100%;
}

/* ≥768px: show 2 at a time */
@media (min-width: 768px) {
    .carousel-track .testimonial {
        flex: 0 0 50%;
    }
}

/* ≥1024px: show 3 at a time */
@media (min-width: 1024px) {
    .carousel-track .testimonial {
        flex: 0 0 33.3333%;
    }
}

/* Navigation arrows */

.carousel-nav {
    border: none;
    background: rgba(15, 23, 42, 0.06);
    color: #111827;
    width: 36px;
    height: 36px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(15, 23, 42, 0.14);
    transition: background 150ms ease, transform 150ms ease, box-shadow 150ms ease, color 150ms ease;
}

.carousel-nav:hover {
    background: rgba(15, 76, 129, 0.12);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.2);
}

.carousel-nav:disabled {
    opacity: 0.4;
    cursor: default;
    transform: none;
    box-shadow: none;
}

/* Dark mode arrows */

[data-theme="dark"] .carousel-nav {
    background: #020617;
    color: #e5e7eb;
    border: 1px solid #1f2937;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .carousel-nav:hover:not(:disabled) {
    background: #0b1120;
}

/* Ensure testimonial cards still use your existing style inside carousel */


/* Problem & Solution Sections */
.problem-section ul, 
.solution-section ul {
    list-style-type: none;
    padding-left: 0;
    margin-top: var(--spacing-3);
}

.problem-section li, 
.solution-section li {
    padding-left: 1.75rem;
    position: relative;
    margin-bottom: var(--spacing-2);
}

.problem-section li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #ef4444;
    font-size: 0.9rem;
    top: 0.1rem;
}

.solution-section li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-size: 0.9rem;
    top: 0.1rem;
}

/* How It Works */
.how-it-works-section ol {
    margin-top: var(--spacing-4);
    padding-left: 1.4rem;
}

.how-it-works-section li {
    margin-bottom: var(--spacing-4);
}

/* Engagement Models */
.engagement-models-section {
    background: radial-gradient(circle at top left, rgba(15, 76, 129, 0.08), transparent 55%), var(--bg-surface);
}

[data-theme="dark"] .engagement-models-section {
    background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.9), #020617);
}

.engagement-models-section h2 {
    margin-bottom: var(--spacing-6);
}

.engagement-tier {
    margin-bottom: var(--spacing-6);
    padding: var(--spacing-6);
    background-color: var(--bg-muted);
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.5);
    box-shadow: var(--shadow-xs);
}

[data-theme="dark"] .engagement-tier {
    background-color: #020617;
    border-color: #1f2937;
}

.engagement-tier h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-2);
}

[data-theme="dark"] .engagement-tier h3 {
    color: #93c5fd;
}

.tier-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-2);
}

.tier-label {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
}

.tier-description {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-5);
}

.tier-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-5);
    margin-bottom: var(--spacing-4);
}

.tier-column h4 {
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-2);
}

.tier-column ul {
    padding-left: 1.1rem;
}

.tier-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.investment {
    font-size: var(--font-size-md);
    padding: 0.7rem 1rem;
    background-color: rgba(15, 23, 42, 0.04);
    border-radius: 999px;
    margin: 0;
}

[data-theme="dark"] .investment {
    background-color: #020617;
    border: 1px solid #1f2937;
}

/* Other Sections */
.commercial-terms-section ul,
.target-audience-section ul,
.next-step-section ul {
    margin-top: var(--spacing-4);
}

/* Footer */
.site-footer {
    background-color: var(--bg-footer);
    color: var(--text-inverse);
    padding: var(--spacing-8) 0 var(--spacing-6);
    margin-top: var(--spacing-16);
    border-top: 1px solid #020617;
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-4);
    flex-wrap: wrap;
}

/* Explicit footer link colors for dark theme */
.footer-links a {
    color: #e5e7eb;
    font-size: var(--font-size-sm);
}

.footer-links a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

copyright {
    color: rgba(148, 163, 184, 0.9);
}

/* Responsive Design */
@media (max-width: 960px) {
    main {
        padding-inline: var(--spacing-3);
    }

    section {
        padding: var(--spacing-6);
    }

    .hero-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--spacing-8);
    }

    .hero-aside {
        justify-content: flex-start;
    }

    .hero-aside-card {
        max-width: 100%;
    }

    .testimonials-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tier-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tier-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 720px) {
    section {
        padding: var(--spacing-5);
    }

    .hero-section {
        padding: var(--spacing-6);
    }

    .hero-section h1 {
        font-size: clamp(2rem, 2.6rem, 2.6rem);
    }

    .social-proof-section h2 {
        text-align: left;
    }

    .testimonials-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .tier-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .header-container {
        padding-inline: var(--spacing-3);
    }

    .footer-links {
        flex-direction: column;
        gap: var(--spacing-2);
    }
}

/* RTL Support */
[dir="rtl"] .problem-section li::before,
[dir="rtl"] .solution-section li::before {
    left: auto;
    right: 0;
}

[dir="rtl"] ul, 
[dir="rtl"] ol {
    padding-left: 0;
    padding-right: 1.25rem;
}

[dir="rtl"] blockquote {
    border-left: none;
    border-right: 2px solid rgba(148, 163, 184, 0.9);
    padding-left: 0;
    padding-right: var(--spacing-4);
}

#email-display {color: var(--text-main); -webkit-user-select: none; -ms-user-select: none; user-select: none; cursor: default;}