/* ==========================================================================
   Takticlip Landing Page & Success Page — Core CSS Stylesheet
   Design Tokens, Utility Classes, Responsive Grid & Component Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens & Root Variables
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette */
    --color-bg: #0F172A;
    --color-surface-dark: #141E31;
    --color-surface-card: #172033;
    --color-border: #1E293B;
    --color-border-card: #26334A;
    --color-border-input: #334155;
    
    /* Brand Accent Colors */
    --color-primary: #C65A18;
    --color-primary-hover: #D8651E;
    --color-accent-blue: #3B82F6;
    --color-accent-green: #10B981;
    
    /* Text Colors */
    --color-text-main: #F8FAFC;
    --color-text-muted: #94A3B8;
    --color-text-dark: #0F172A;

    /* Typography */
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Layout & Spacing */
    --container-max-width: 1120px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows & Transitions */
    --shadow-card: 0 10px 24px rgba(0, 0, 0, 0.25);
    --shadow-dropdown: 0 12px 28px rgba(0, 0, 0, 0.45);
    --shadow-btn: 0 4px 14px rgba(198, 90, 24, 0.35);
    --shadow-success: 0 0 35px rgba(16, 185, 129, 0.35);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-family);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* Helper Icons */
.icon {
    display: inline-block;
    width: 1.25em;
    height: 1.25em;
    vertical-align: middle;
    flex-shrink: 0;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --------------------------------------------------------------------------
   3. Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 800;
    font-size: 0.9375rem; /* 15px */
    line-height: 1;
    padding: 14px 22px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    font-size: 0.8125rem; /* 13px */
    font-weight: 700;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
}

.btn-secondary:hover {
    background-color: var(--color-primary-hover);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
}

.speed-badge {
    background-color: var(--color-surface-card);
    border: 1px solid var(--color-border-card);
    color: var(--color-text-main);
}

.speed-badge .icon {
    color: var(--color-primary);
    width: 16px;
    height: 16px;
}

/* --------------------------------------------------------------------------
   4. Header Navigation & Language Selector
   -------------------------------------------------------------------------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    border-radius: var(--radius-sm);
}

.logo-badge .icon {
    width: 14px;
    height: 14px;
}

.brand-name {
    font-size: 1.25rem; /* 20px */
    font-weight: 800;
    letter-spacing: -0.6px;
    color: var(--color-text-main);
}

.navbar-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Language Selector Dropdown Component */
.lang-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-card);
    color: var(--color-text-main);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.lang-btn:hover, .lang-selector.open .lang-btn {
    background-color: var(--color-surface-card);
    border-color: var(--color-accent-blue);
}

.lang-flag {
    font-size: 1rem;
    line-height: 1;
}

.lang-btn .chevron {
    width: 14px;
    height: 14px;
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.lang-selector.open .lang-btn .chevron {
    transform: rotate(180deg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 140px;
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-dropdown);
    list-style: none;
    padding: 6px;
    z-index: 110;
    animation: dropdownFade var(--transition-fast);
}

.lang-selector.open .lang-dropdown {
    display: block;
}

@keyframes dropdownFade {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-option:hover, .lang-option.active {
    background-color: var(--color-surface-card);
    color: var(--color-text-main);
}

.lang-option.active {
    font-weight: 700;
}

/* --------------------------------------------------------------------------
   5. Hero Section & Trial Form Card
   -------------------------------------------------------------------------- */
.hero-section {
    padding: 80px 0 72px;
    background: radial-gradient(circle at 30% 20%, rgba(198, 90, 24, 0.08) 0%, transparent 60%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 56px;
    align-items: start;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
}

.hero-title {
    font-size: 3.25rem; /* 52px */
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.7px;
    color: var(--color-text-main);
}

.hero-subtitle {
    font-size: 1.125rem; /* 18px */
    line-height: 1.55;
    color: var(--color-text-muted);
    max-width: 580px;
}

.hero-cta {
    margin-top: 8px;
}

/* Trial Form Card */
.form-card {
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-title {
    font-size: 1.375rem; /* 22px */
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--color-text-main);
    line-height: 1.2;
}

.form-subtitle {
    font-size: 0.875rem; /* 14px */
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-top: -12px;
}

.trial-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-group {
    width: 100%;
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border-input);
    border-radius: var(--radius-sm);
    color: var(--color-text-main);
    font-size: 0.875rem;
    font-weight: 500;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.form-input:focus {
    border-color: var(--color-accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-submit {
    width: 100%;
    margin-top: 6px;
    height: 48px;
}

.form-feedback {
    display: none;
    padding: 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    text-align: center;
}

.form-feedback.success {
    display: block;
    background-color: rgba(59, 130, 246, 0.15);
    border: 1px solid var(--color-accent-blue);
    color: #60A5FA;
}

/* --------------------------------------------------------------------------
   6. Product Demo Section (Video Mockup)
   -------------------------------------------------------------------------- */
.demo-section {
    padding: 72px 0 88px;
    border-top: 1px solid var(--color-border);
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.section-badge {
    font-size: 0.75rem; /* 12px */
    font-weight: 800;
    letter-spacing: 1.6px;
    color: var(--color-primary);
    text-transform: uppercase;
}

.section-title {
    font-size: 2.125rem; /* 34px */
    font-weight: 800;
    letter-spacing: -0.8px;
    line-height: 1.2;
    color: var(--color-text-main);
}

/* Player Mockup Container */
.player-mockup {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-card);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    overflow: hidden;
}

.player-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    background-color: rgba(15, 23, 42, 0.6);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.8125rem;
}

.match-info {
    font-weight: 700;
    color: var(--color-text-main);
}

.match-score {
    font-weight: 800;
    color: var(--color-primary);
    font-variant-numeric: tabular-nums;
}

/* Video Surface */
.player-viewport {
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: #060B14;
    background-image: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.player-play-btn {
    width: 68px;
    height: 68px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 30px rgba(198, 90, 24, 0.5);
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.player-play-btn:hover {
    transform: scale(1.08);
    background-color: var(--color-primary-hover);
}

.player-play-btn .icon {
    width: 28px;
    height: 28px;
    margin-left: 3px;
}

.player-time {
    position: absolute;
    bottom: 14px;
    right: 18px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    background: rgba(15, 23, 42, 0.8);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-variant-numeric: tabular-nums;
}

/* Timeline */
.player-timeline {
    padding: 12px 20px;
    background-color: var(--color-surface-dark);
}

.timeline-bar {
    width: 100%;
    height: 6px;
    background-color: var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    cursor: pointer;
}

.timeline-progress {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-fast);
}

/* Tags Action Bar */
.player-tags {
    padding: 16px 20px 20px;
    background-color: rgba(15, 23, 42, 0.4);
    border-top: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tags-label {
    font-size: 0.6875rem; /* 11px */
    font-weight: 800;
    letter-spacing: 1.4px;
    color: var(--color-text-muted);
}

.tags-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: var(--color-surface-card);
    border: 1px solid var(--color-border-card);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    color: var(--color-text-main);
    font-size: 0.8125rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.tag-item:hover, .tag-item.active {
    border-color: var(--color-accent-blue);
    background-color: rgba(59, 130, 246, 0.12);
}

.tag-badge {
    background-color: var(--color-accent-blue);
    color: #FFF;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 7px;
    border-radius: 4px;
}

/* --------------------------------------------------------------------------
   7. Benefits Section
   -------------------------------------------------------------------------- */
.benefits-section {
    padding: 88px 0;
    border-top: 1px solid var(--color-border);
    background: radial-gradient(circle at 70% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 60%);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 48px;
}

.benefit-card {
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-card);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-4px);
    border-color: rgba(198, 90, 24, 0.4);
}

.benefit-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: rgba(198, 90, 24, 0.12);
    color: var(--color-primary);
}

.benefit-icon .icon {
    width: 22px;
    height: 22px;
}

.benefit-title {
    font-size: 1.125rem; /* 18px */
    font-weight: 800;
    letter-spacing: -0.3px;
    color: var(--color-text-main);
    line-height: 1.3;
}

.benefit-description {
    font-size: 0.875rem; /* 14px */
    line-height: 1.55;
    color: var(--color-text-muted);
}

.benefits-cta-wrap {
    margin-top: 48px;
    text-align: center;
}

/* --------------------------------------------------------------------------
   8. Success Page Styles (success.html)
   -------------------------------------------------------------------------- */
.success-main {
    min-height: calc(100vh - 144px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
}

.success-section {
    width: 100%;
}

.success-card {
    max-width: 760px;
    margin: 0 auto;
    background-color: var(--color-surface-dark);
    border: 1px solid var(--color-border-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
}

.success-icon-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    background-color: rgba(16, 185, 129, 0.12);
    color: var(--color-accent-green);
    border: 2px solid var(--color-accent-green);
    box-shadow: var(--shadow-success);
    margin-bottom: 8px;
    animation: successPulse 2s infinite ease-in-out;
}

@keyframes successPulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 16px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.success-icon-badge .icon {
    width: 32px;
    height: 32px;
}

.success-title {
    font-size: 2.25rem; /* 36px */
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.15;
    color: var(--color-text-main);
}

.success-subtitle {
    font-size: 1.0625rem; /* 17px */
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 600px;
}

/* Steps Container */
.steps-container {
    width: 100%;
    margin-top: 16px;
    padding: 24px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border-card);
    border-radius: var(--radius-md);
    text-align: left;
}

.steps-title {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-text-main);
    margin-bottom: 20px;
}

.steps-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.step-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background-color: var(--color-surface-card);
    color: var(--color-primary);
    flex-shrink: 0;
    border: 1px solid var(--color-border-card);
}

.step-icon .icon {
    width: 20px;
    height: 20px;
}

.step-heading {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--color-text-main);
    margin-bottom: 4px;
}

.step-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.45;
}

.success-cta-wrap {
    margin-top: 12px;
}

/* --------------------------------------------------------------------------
   9. Footer
   -------------------------------------------------------------------------- */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 32px 0;
    background-color: rgba(15, 23, 42, 0.8);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.copyright {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--color-text-main);
}

.footer-contact .icon {
    color: var(--color-primary);
    width: 18px;
    height: 18px;
}

.footer-contact a:hover {
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   10. Responsive Breakpoints
   -------------------------------------------------------------------------- */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-title {
        font-size: 2.5rem; /* 40px */
    }

    .form-card {
        max-width: 500px;
        width: 100%;
        margin: 0 auto;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Mobile (max-width: 640px) */
@media (max-width: 640px) {
    .navbar-inner {
        height: 64px;
    }

    .nav-cta {
        display: none;
    }

    .hero-section {
        padding: 48px 0;
    }

    .hero-title {
        font-size: 2rem; /* 32px */
        letter-spacing: -1px;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.625rem; /* 26px */
    }

    .form-card {
        padding: 24px 20px;
    }

    .player-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .success-card {
        padding: 32px 20px;
    }

    .success-title {
        font-size: 1.75rem; /* 28px */
    }

    .footer-inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}