@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;600;700&family=Cabin:wght@400;600&display=swap');

:root {
    --45f-primary: #1d4ed8;
    --45f-secondary: #1e3a8a;
    --45f-accent: #84cc16;
    --45f-background: #eff6ff;
    --45f-text: #1e3a5f;
    --45f-muted: #93c5fd;
    --45f-white: #ffffff;
    --45f-dark: #0f172a;

    --fn-border-radius: 0.5rem;
    --fn-spacing-sm: 0.75rem;
    --fn-spacing-md: 1.5rem;
    --fn-spacing-lg: 3rem;
    --fn-spacing-xl: 5rem;

    --fn-font-heading: 'Archivo', sans-serif;
    --fn-font-body: 'Cabin', sans-serif;

    --fn-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --fn-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --fn-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
}

/* Base Reset & Global Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--fn-font-body);
    line-height: 1.6;
    color: var(--45f-text);
    background-color: var(--45f-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: var(--45f-primary);
    color: var(--45f-white);
}

a {
    color: var(--45f-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--45f-secondary);
}

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

/* Typography Scale */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--fn-font-heading);
    color: var(--45f-dark);
    line-height: 1.2;
    margin-bottom: var(--fn-spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw + 1rem, 4.2rem);
    font-weight: 700;
    letter-spacing: -0.05em;
}

h2 {
    font-size: clamp(2rem, 4vw + 1rem, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
}

h3 {
    font-size: clamp(1.75rem, 3vw + 1rem, 2.25rem);
    font-weight: 600;
    letter-spacing: -0.02em;
}

h4 {
    font-size: clamp(1.5rem, 2.5vw + 1rem, 1.8rem);
    font-weight: 600;
}

h5 {
    font-size: clamp(1.25rem, 2vw + 1rem, 1.5rem);
    font-weight: 600;
}

h6 {
    font-size: clamp(1rem, 1.5vw + 1rem, 1.25rem);
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
}

/* Utility Classes */
.fn-container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.fn-section-padding {
    padding-top: var(--fn-spacing-xl);
    padding-bottom: var(--fn-spacing-xl);
}

.fn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--fn-spacing-md);
}

.fn-flex {
    display: flex;
    align-items: center;
    gap: var(--fn-spacing-md);
}

.fn-flex-col {
    flex-direction: column;
}

.fn-text-center {
    text-align: center;
}

.fn-highlight {
    color: var(--45f-primary);
}

.fn-bg-gradient {
    background: linear-gradient(135deg, var(--45f-primary) 0%, var(--45f-secondary) 100%);
    color: var(--45f-white);
}

.fn-bg-light {
    background-color: var(--45f-white);
}

.fn-bg-muted {
    background-color: var(--45f-background);
}

.fn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--45f-accent);
    color: var(--45f-white);
    border-radius: var(--fn-border-radius);
    font-size: 1.5rem;
    margin-right: var(--fn-spacing-sm);
}

/* Buttons */
.fn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: var(--fn-border-radius);
    font-family: var(--fn-font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    text-decoration: none;
}

.fn-btn-primary {
    background-color: var(--45f-primary);
    color: var(--45f-white);
}

.fn-btn-primary:hover {
    background-color: var(--45f-secondary);
    transform: translateY(-2px);
    box-shadow: var(--fn-shadow-md);
}

.fn-btn-secondary {
    background-color: var(--45f-accent);
    color: var(--45f-dark);
}

.fn-btn-secondary:hover {
    background-color: #6dae14;
    transform: translateY(-2px);
    box-shadow: var(--fn-shadow-md);
}

.fn-btn-outline {
    background-color: transparent;
    color: var(--45f-primary);
    border-color: var(--45f-primary);
}

.fn-btn-outline:hover {
    background-color: var(--45f-primary);
    color: var(--45f-white);
    transform: translateY(-2px);
    box-shadow: var(--fn-shadow-md);
}

/* Header & Navigation */
.fn-header {
    background-color: var(--45f-white);
    padding: 1rem 0;
    box-shadow: var(--fn-shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.fn-logo {
    font-family: var(--fn-font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--45f-primary);
    text-decoration: none;
    position: relative;
    z-index: 1001;
}

.fn-nav-desktop {
    display: flex;
    gap: 2rem;
}

.fn-nav-desktop a {
    color: var(--45f-text);
    font-weight: 600;
    padding: 0.5rem 0;
    position: relative;
}

.fn-nav-desktop a:hover {
    color: var(--45f-primary);
}

.fn-nav-desktop a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--45f-primary);
    transition: width 0.3s ease;
}

.fn-nav-desktop a:hover::after {
    width: 100%;
}

.fn-nav-cta {
    margin-left: var(--fn-spacing-md);
}

.fn-hamburger {
    display: none;
    font-size: 2rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--45f-primary);
    z-index: 1001;
}

.fn-nav-mobile {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--45f-dark);
    padding: var(--fn-spacing-xl) var(--fn-spacing-md);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    transition: right 0.4s ease-in-out;
    z-index: 999;
}

.fn-nav-mobile.active {
    right: 0;
}

.fn-nav-mobile a {
    color: var(--45f-white);
    font-size: 1.2rem;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.fn-nav-mobile a:last-child {
    border-bottom: none;
}

.fn-nav-mobile a:hover {
    color: var(--45f-accent);
}

/* Hero Section */
.fn-hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--45f-white);
    overflow: hidden;
    padding: var(--fn-spacing-xl) 0;
}

.fn-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://picsum.photos/seed/courses-hero/1400/800') no-repeat center center/cover;
    z-index: -2;
}

.fn-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(29, 78, 216, 0.8) 0%, rgba(30, 58, 138, 0.85) 100%);
    z-index: -1;
}

.fn-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 1rem;
}

.fn-hero-content h1 {
    color: var(--45f-white);
    margin-bottom: 1rem;
}

.fn-hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Form Styling */
.fn-form-group {
    margin-bottom: 1rem;
}

.fn-form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--45f-text);
}

.fn-input-text, .fn-textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--45f-muted);
    border-radius: var(--fn-border-radius);
    font-family: var(--fn-font-body);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.fn-input-text:focus, .fn-textarea:focus {
    outline: none;
    border-color: var(--45f-primary);
    box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.2);
}

.fn-textarea {
    min-height: 120px;
    resize: vertical;
}

.fn-form-message {
    padding: 1rem;
    border-radius: var(--fn-border-radius);
    margin-top: 1rem;
    display: none;
}

.fn-success-message {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #34d399;
}

.fn-error-message {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.fn-form-loading {
    opacity: 0.7;
    cursor: wait;
}

/* Card Components */
.fn-card {
    background-color: var(--45f-white);
    border-radius: var(--fn-border-radius);
    box-shadow: var(--fn-shadow-md);
    padding: var(--fn-spacing-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.fn-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--fn-shadow-lg);
}

.fn-card-img-top {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-top-left-radius: var(--fn-border-radius);
    border-top-right-radius: var(--fn-border-radius);
    margin-bottom: var(--fn-spacing-sm);
}

.fn-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--45f-dark);
}

.fn-card-text {
    font-size: 0.95rem;
    color: var(--45f-text);
    margin-bottom: var(--fn-spacing-sm);
}

.fn-card-footer {
    padding-top: var(--fn-spacing-sm);
    border-top: 1px solid var(--45f-background);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--45f-muted);
}

/* Testimonial Cards */
.fn-testimonial-card {
    background-color: var(--45f-white);
    border-radius: var(--fn-border-radius);
    box-shadow: var(--fn-shadow-md);
    padding: var(--fn-spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.fn-testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--fn-shadow-lg);
}

.fn-testimonial-quote {
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--45f-dark);
    font-size: 1.1rem;
}

.fn-testimonial-author {
    font-weight: 600;
    color: var(--45f-primary);
    margin-top: 0.5rem;
    display: block;
}

.fn-testimonial-role {
    font-size: 0.9rem;
    color: var(--45f-muted);
}

/* Trust Badges/Elements */
.fn-trust-item {
    display: inline-flex;
    align-items: center;
    background-color: var(--45f-white);
    padding: 0.8rem 1.2rem;
    border-radius: var(--fn-border-radius);
    box-shadow: var(--fn-shadow-sm);
    margin: 0.5rem;
    font-weight: 600;
    color: var(--45f-dark);
    transition: transform 0.3s ease;
}

.fn-trust-item:hover {
    transform: translateY(-3px);
}

.fn-trust-item svg {
    margin-right: 0.6rem;
    color: var(--45f-primary);
    font-size: 1.5rem;
}

/* Footer */
.fn-footer {
    background-color: var(--45f-dark);
    color: var(--45f-background);
    padding: var(--fn-spacing-xl) 0 2rem 0;
    font-size: 0.9rem;
}

.fn-footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--fn-spacing-md);
    margin-bottom: var(--fn-spacing-lg);
}

.fn-footer-col h3 {
    color: var(--45f-white);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.fn-footer-col ul {
    list-style: none;
}

.fn-footer-col ul li {
    margin-bottom: 0.7rem;
}

.fn-footer-col ul li a {
    color: var(--45f-background);
    transition: color 0.3s ease;
}

.fn-footer-col ul li a:hover {
    color: var(--45f-primary);
}

.fn-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--fn-spacing-md);
    text-align: center;
    color: var(--45f-muted);
}

/* FAQ Accordion */
.fn-faq-section {
    background-color: var(--45f-white);
    padding: var(--fn-spacing-xl) 0;
}

.fn-faq-item {
    background-color: var(--45f-background);
    border-radius: var(--fn-border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--fn-shadow-sm);
    transition: all 0.3s ease;
}

.fn-faq-q {
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--45f-dark);
    font-size: 1.1rem;
    background-color: var(--45f-white);
}

.fn-faq-q::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--45f-primary);
    transition: transform 0.3s ease;
}

.fn-faq-item.active .fn-faq-q::after {
    content: '-';
    transform: rotate(180deg);
}

.fn-faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1.5rem;
}

.fn-faq-item.active .fn-faq-a {
    max-height: 500px; /* Sufficiently large value */
    padding: 1rem 1.5rem 1.5rem;
    border-top: 1px solid var(--45f-muted);
}

.fn-faq-a p {
    margin-bottom: 0;
    color: var(--45f-text);
}

/* CTA Section */
.fn-cta-block {
    padding: var(--fn-spacing-xl) 0;
    text-align: center;
    background: linear-gradient(90deg, var(--45f-secondary) 0%, var(--45f-primary) 100%);
    color: var(--45f-white);
}

.fn-cta-block h2 {
    color: var(--45f-white);
    margin-bottom: 1.5rem;
}

.fn-cta-block p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Progress Bar Accent */
.fn-progress-accent {
    width: 100%;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 1.5rem;
}

.fn-progress-bar {
    width: 80%; /* Example progress */
    height: 100%;
    background-color: var(--45f-accent);
    border-radius: 3px;
    animation: fn-fill-progress 2s ease-out forwards;
}

@keyframes fn-fill-progress {
    from { width: 0%; }
    to { width: 80%; }
}

/* Animations */
.fn-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fn-animate.fn-animated {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .fn-nav-desktop {
        gap: 1.5rem;
    }

    .fn-hero-content h1 {
        font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
    }

    .fn-hero-content p {
        font-size: 1.1rem;
    }

    .fn-section-padding {
        padding-top: var(--fn-spacing-lg);
        padding-bottom: var(--fn-spacing-lg);
    }
}

@media (max-width: 768px) {
    .fn-nav-desktop, .fn-nav-cta {
        display: none;
    }

    .fn-hamburger {
        display: block;
    }

    .fn-nav-mobile {
        display: flex;
    }

    .fn-header-inner {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .fn-hero {
        min-height: 60vh;
    }

    .fn-hero-content h1 {
        font-size: clamp(1.8rem, 6vw + 1rem, 3rem);
    }
    
    h2 {
        font-size: clamp(1.8rem, 5vw + 1rem, 2.5rem);
    }

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

    .fn-footer-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .fn-testimonial-card {
        padding: var(--fn-spacing-md);
    }

    .fn-trust-item {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    .fn-trust-item svg {
        font-size: 1.2rem;
    }

    .fn-faq-q {
        font-size: 1rem;
        padding: 1rem 1.2rem;
    }

    .fn-faq-item.active .fn-faq-a {
        padding: 0.8rem 1.2rem 1rem;
    }
}

@media (max-width: 480px) {
    .fn-hero {
        min-height: 50vh;
    }

    .fn-hero-content h1 {
        font-size: clamp(1.5rem, 7vw + 1rem, 2.5rem);
    }

    .fn-hero-content p {
        font-size: 1rem;
    }

    .fn-btn {
        width: 100%;
        padding: 0.8rem 1rem;
    }

    .fn-section-padding {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .fn-card {
        padding: var(--fn-spacing-sm);
    }

    .fn-card-title {
        font-size: 1.1rem;
    }

    .fn-footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .fn-footer-col ul {
        padding-left: 0;
    }
}


/* === Quality polish === */
button, [class*="btn"], [class*="cta"] { transition: all 0.3s ease; cursor: pointer; }
button:hover, [class*="btn"]:hover, [class*="cta"]:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); filter: brightness(1.05); }