/* ============================================
   CSS Variables & Base Styles
   ============================================ */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #e1306c;
    --color-accent: #25d366;
    --color-accent-dark: #128c7e;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-alt: #f3f4f6;
    --color-border: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --transition: 0.2s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    text-align: center;
    margin-bottom: 1rem;
    color: var(--color-text);
}

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

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

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn svg {
    flex-shrink: 0;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.1);
}

.btn-accent {
    background: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-accent:hover {
    background: var(--color-accent-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
    padding: 4rem 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    aspect-ratio: 1;
    object-fit: cover;
}

.hero-text h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.hero-tagline {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
}

.hero-highlight {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 500;
    background: rgba(37, 99, 235, 0.1);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.hero-cta .btn {
    width: 100%;
    max-width: 400px;
}

/* ============================================
   Trust Section
   ============================================ */
.trust-section {
    padding: 4rem 0;
    background: var(--color-bg);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.trust-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.trust-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-md);
}

.trust-item p {
    font-weight: 500;
    color: var(--color-text);
}

/* ============================================
   Diploma Section
   ============================================ */
.diploma-section {
    padding: 5rem 0;
    background: var(--color-bg-alt);
}

.diploma-wrapper {
    max-width: 600px;
    margin: 2rem auto 0;
    cursor: zoom-in;
}

.diploma-image {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition);
}

.diploma-image:hover {
    transform: scale(1.02);
}

/* ============================================
   Results Section
   ============================================ */
.results-section {
    padding: 5rem 0;
    background: var(--color-bg);
}

.results-subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
}

.result-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.result-item img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.result-item.hidden {
    display: none;
}

#load-more-results {
    display: block;
    margin: 2rem auto 0;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works-section {
    padding: 5rem 0;
    background: var(--color-bg-alt);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
}

.step-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--color-text-light);
}

.step-item-highlight {
    border: 2px solid var(--color-primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(79, 70, 229, 0.05) 100%);
}

.section-subtitle {
    text-align: center;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* ============================================
   Guide Section
   ============================================ */
.guide-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, #4f46e5 100%);
    color: white;
}

.guide-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.guide-icon {
    margin-bottom: 1.5rem;
}

.guide-icon svg {
    stroke: white;
}

.guide-section h2 {
    color: white;
    margin-bottom: 1rem;
}

.guide-description {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.guide-form,
.guide-download {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.guide-form .btn,
.guide-download .btn {
    min-width: 320px;
}

/* ============================================
   FAQ Section
   ============================================ */
.faq-section {
    padding: 5rem 0;
    background: var(--color-bg);
}

.faq-list {
    max-width: 800px;
    margin: 2.5rem auto 0;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    text-align: left;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--color-primary);
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform var(--transition);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: 1.5rem;
}

.faq-answer p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   Footer CTA
   ============================================ */
.footer-cta {
    padding: 5rem 0;
    background: var(--color-bg-alt);
    text-align: center;
}

.footer-cta h2 {
    margin-bottom: 2rem;
}

.footer-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 2rem 0;
    background: var(--color-text);
    color: white;
    text-align: center;
}

.disclaimer {
    font-size: 0.75rem;
    opacity: 0.6;
    max-width: 600px;
    margin: 0 auto 0.75rem;
}

.copyright {
    font-size: 0.875rem;
    opacity: 0.6;
}

/* ============================================
   Lightbox
   ============================================ */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-close {
    top: 1rem;
    right: 1rem;
}

.lightbox-prev {
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
}

.animate-on-scroll.animated {
    animation: fadeInUp 0.6s ease forwards;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-image img {
        max-width: 350px;
    }

    .hero-cta {
        align-items: center;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 2rem 0;
        min-height: auto;
    }

    .hero-image img {
        max-width: 280px;
    }

    .btn-large {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .trust-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .step-item {
        flex-direction: column;
        text-align: center;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .footer-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer-cta-buttons .btn {
        width: 100%;
        max-width: 320px;
    }

    .guide-form .btn,
    .guide-download .btn {
        min-width: auto;
        width: 100%;
    }

    .lightbox-prev,
    .lightbox-next {
        font-size: 1.5rem;
        padding: 0.375rem 0.75rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .hero-cta,
    .footer-cta,
    .lightbox,
    .btn {
        display: none !important;
    }
}