/**
 * Student-Friendly Design System
 * A warm, welcoming, and approachable aesthetic for education platforms
 * 
 * Usage: Include this CSS file in your blade templates:
 * <link href="{{ asset('css/student-friendly.css') }}" rel="stylesheet">
 */

/* ============================================
   FONTS
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap');

/* ============================================
   CSS VARIABLES (Design Tokens)
   ============================================ */
:root {
    /* Primary Colors - Friendly Blues */
    --sf-sky-light: #e8f4fc;
    --sf-sky-medium: #bde0fe;
    --sf-ocean-soft: #90c5f0;
    --sf-ocean-bright: #5ba4e6;
    --sf-ocean-deep: #3d8bd4;
    
    /* Accent Colors - Warm & Energetic */
    --sf-coral-warm: #ff8c6b;
    --sf-coral-bright: #ff6b4a;
    --sf-sunshine: #ffd166;
    --sf-sunshine-soft: #ffe5a0;
    
    /* Success Colors - Fresh Mint */
    --sf-mint-fresh: #6bcb9e;
    --sf-mint-soft: #a7e8c8;
    --sf-mint-deep: #4fb085;
    
    /* Background Colors */
    --sf-cream-bg: #fefcf9;
    --sf-cream-card: #ffffff;
    --sf-cream-soft: #faf8f5;
    
    /* Text Colors */
    --sf-text-dark: #3d4f5f;
    --sf-text-warm: #4a5b6a;
    --sf-text-soft: #6b7f8e;
    --sf-text-light: #8fa3b3;
    --sf-text-muted: #a3b5c4;
    
    /* Danger/Error */
    --sf-danger: #ef6b6b;
    --sf-danger-soft: #fde8e8;
    
    /* Shadows */
    --sf-shadow-xs: 0 2px 8px rgba(91, 164, 230, 0.08);
    --sf-shadow-sm: 0 4px 12px rgba(91, 164, 230, 0.1);
    --sf-shadow-md: 0 8px 24px rgba(91, 164, 230, 0.12);
    --sf-shadow-lg: 0 12px 32px rgba(91, 164, 230, 0.15);
    --sf-shadow-xl: 0 16px 48px rgba(91, 164, 230, 0.18);
    
    /* Border Radius */
    --sf-radius-sm: 8px;
    --sf-radius-md: 12px;
    --sf-radius-lg: 16px;
    --sf-radius-xl: 24px;
    --sf-radius-2xl: 32px;
    --sf-radius-full: 9999px;
    
    /* Transitions */
    --sf-transition-fast: 0.2s ease;
    --sf-transition-normal: 0.3s ease;
    --sf-transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.sf-body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--sf-cream-bg);
    color: var(--sf-text-dark);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

::selection {
    background: var(--sf-ocean-soft);
    color: white;
}

/* ============================================
   BACKGROUND DECORATIONS
   ============================================ */
.sf-bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(189, 224, 254, 0.4) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 209, 102, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(167, 232, 200, 0.2) 0%, transparent 50%);
}

.sf-floating-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.sf-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}

.sf-shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(189, 224, 254, 0.5), rgba(144, 197, 240, 0.3));
    top: -100px;
    right: -50px;
    animation: sf-float-slow 20s ease-in-out infinite;
}

.sf-shape-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(255, 209, 102, 0.4), rgba(255, 140, 107, 0.3));
    bottom: 10%;
    left: -50px;
    animation: sf-float-slow 25s ease-in-out infinite reverse;
}

.sf-shape-3 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(167, 232, 200, 0.5), rgba(107, 203, 158, 0.3));
    top: 40%;
    right: 5%;
    animation: sf-float-slow 18s ease-in-out infinite 2s;
}

@keyframes sf-float-slow {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(20px, -20px) rotate(5deg); }
    50% { transform: translate(0, -30px) rotate(0deg); }
    75% { transform: translate(-20px, -10px) rotate(-5deg); }
}

/* ============================================
   HERO SECTION
   ============================================ */
.sf-hero {
    position: relative;
    padding: 3rem 0 4rem;
    z-index: 1;
    text-align: center;
}

.sf-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.sf-hero-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--sf-sunshine), var(--sf-coral-warm));
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(255, 209, 102, 0.3);
    animation: sf-bounce-gentle 3s ease-in-out infinite;
    transform: rotate(-5deg);
}

.sf-hero-icon i {
    font-size: 2.25rem;
    color: white;
}

@keyframes sf-bounce-gentle {
    0%, 100% { transform: rotate(-5deg) translateY(0); }
    50% { transform: rotate(-5deg) translateY(-8px); }
}

@keyframes sf-bounce-vertical {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.sf-hero-greeting {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--sf-ocean-bright);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
    opacity: 0;
    animation: sf-fadeUp 0.6s ease forwards 0.2s;
}

.sf-hero-title {
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--sf-text-dark);
    opacity: 0;
    animation: sf-fadeUp 0.6s ease forwards 0.3s;
}

.sf-hero-title .sf-highlight {
    background: linear-gradient(135deg, var(--sf-coral-warm), var(--sf-coral-bright));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sf-hero-title .sf-wave {
    display: inline-block;
    animation: sf-wave 2s ease-in-out infinite;
    transform-origin: 70% 70%;
}

@keyframes sf-wave {
    0%, 100% { transform: rotate(0deg); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    30% { transform: rotate(14deg); }
    40% { transform: rotate(-4deg); }
    50%, 100% { transform: rotate(0deg); }
}

.sf-hero-subtitle {
    font-size: 1.05rem;
    color: var(--sf-text-soft);
    max-width: 500px;
    margin: 0 auto 2rem;
    font-weight: 500;
    line-height: 1.7;
    opacity: 0;
    animation: sf-fadeUp 0.6s ease forwards 0.4s;
}

/* Hero Features Pills */
.sf-hero-features {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: sf-fadeUp 0.6s ease forwards 0.5s;
}

.sf-hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.1rem;
    background: white;
    border-radius: var(--sf-radius-full);
    box-shadow: var(--sf-shadow-sm);
    border: 2px solid transparent;
    transition: var(--sf-transition-normal);
}

.sf-hero-feature:hover {
    transform: translateY(-3px);
    border-color: var(--sf-ocean-soft);
    box-shadow: var(--sf-shadow-md);
}

.sf-hero-feature i {
    font-size: 1rem;
}

.sf-hero-feature:nth-child(1) i { color: var(--sf-coral-warm); }
.sf-hero-feature:nth-child(2) i { color: var(--sf-ocean-bright); }
.sf-hero-feature:nth-child(3) i { color: var(--sf-mint-fresh); }

.sf-hero-feature span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--sf-text-warm);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes sf-fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes sf-cardPop {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ============================================
   LANGUAGE SWITCHER
   ============================================ */
.sf-language-switcher {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 100;
}

.sf-language-selector {
    display: flex;
    background: white;
    border-radius: var(--sf-radius-full);
    padding: 0.3rem;
    box-shadow: var(--sf-shadow-sm);
    border: 2px solid var(--sf-sky-medium);
}

.sf-language-option {
    padding: 0.5rem 1rem;
    border-radius: var(--sf-radius-full);
    color: var(--sf-text-soft);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--sf-transition-normal);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.sf-language-option.active {
    background: linear-gradient(135deg, var(--sf-ocean-bright), var(--sf-ocean-soft));
    color: white;
    box-shadow: 0 4px 15px rgba(91, 164, 230, 0.3);
}

.sf-language-option:hover:not(.active) {
    color: var(--sf-ocean-bright);
    background: var(--sf-sky-light);
}

/* ============================================
   CARDS
   ============================================ */
.sf-card {
    background: white;
    border-radius: var(--sf-radius-xl);
    box-shadow: var(--sf-shadow-md);
    border: 3px solid transparent;
    transition: var(--sf-transition-smooth);
    overflow: hidden;
}

.sf-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sf-shadow-xl);
}

.sf-card.sf-card-blue {
    border-color: rgba(91, 164, 230, 0.15);
}

.sf-card.sf-card-blue:hover {
    border-color: var(--sf-ocean-bright);
}

.sf-card.sf-card-green {
    border-color: rgba(107, 203, 158, 0.15);
}

.sf-card.sf-card-green:hover {
    border-color: var(--sf-mint-fresh);
}

/* ============================================
   FORM CONTAINER / MAIN CONTAINER
   ============================================ */
.sf-main-container {
    background: white;
    border-radius: var(--sf-radius-2xl);
    box-shadow: var(--sf-shadow-lg);
    border: 3px solid var(--sf-sky-light);
    overflow: hidden;
    position: relative;
    z-index: 1;
    margin-bottom: 2rem;
}

/* ============================================
   FORM SECTIONS
   ============================================ */
.sf-form-section {
    padding: 2.5rem 2rem;
    border-bottom: 2px dashed rgba(189, 224, 254, 0.5);
}

.sf-form-section:last-of-type {
    border-bottom: none;
}

.sf-section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.sf-section-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--sf-radius-md);
    flex-shrink: 0;
}

.sf-section-icon.sf-blue {
    background: var(--sf-sky-light);
    color: var(--sf-ocean-bright);
}

.sf-section-icon.sf-green {
    background: var(--sf-mint-soft);
    color: var(--sf-mint-fresh);
}

.sf-section-icon.sf-coral {
    background: rgba(255, 140, 107, 0.15);
    color: var(--sf-coral-warm);
}

.sf-section-icon.sf-yellow {
    background: var(--sf-sunshine-soft);
    color: #d4a000;
}

.sf-section-icon i {
    font-size: 1.25rem;
}

.sf-section-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--sf-text-dark);
    margin: 0;
}

.sf-section-description {
    color: var(--sf-text-soft);
    margin-bottom: 2rem;
    font-size: 0.95rem;
    line-height: 1.6;
    font-weight: 500;
    padding-left: calc(48px + 1rem); /* Align with title */
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
.sf-form-group {
    margin-bottom: 1.5rem;
}

.sf-form-label {
    font-weight: 700;
    color: var(--sf-text-dark);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
}

.sf-required {
    color: var(--sf-coral-bright);
    font-weight: 800;
}

.sf-form-control {
    width: 100%;
    border: 2px solid var(--sf-sky-medium);
    border-radius: var(--sf-radius-md);
    padding: 0.9rem 1.1rem;
    font-size: 0.95rem;
    font-family: 'Nunito', sans-serif;
    font-weight: 500;
    color: var(--sf-text-dark);
    background: white;
    transition: var(--sf-transition-normal);
    box-shadow: var(--sf-shadow-xs);
}

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

.sf-form-control:hover {
    border-color: var(--sf-ocean-soft);
    box-shadow: var(--sf-shadow-sm);
}

.sf-form-control:focus {
    outline: none;
    border-color: var(--sf-ocean-bright);
    box-shadow: 0 0 0 4px rgba(91, 164, 230, 0.15), var(--sf-shadow-sm);
}

textarea.sf-form-control {
    resize: vertical;
    min-height: 100px;
}

/* Form Control Sizes */
.sf-form-control-lg {
    padding: 1rem 1.25rem;
    font-size: 1rem;
}

/* ============================================
   SELECT2 CUSTOM STYLING
   ============================================ */
.sf-body .select2-container--default .select2-selection--single {
    border: 2px solid var(--sf-sky-medium) !important;
    border-radius: var(--sf-radius-md) !important;
    padding: 0.6rem 0.9rem !important;
    font-size: 0.95rem !important;
    height: auto !important;
    min-height: 52px !important;
    background: white !important;
    box-shadow: var(--sf-shadow-xs) !important;
    font-weight: 500;
    transition: var(--sf-transition-normal) !important;
}

.sf-body .select2-container--default.select2-container--focus .select2-selection--single,
.sf-body .select2-container--default.select2-container--open .select2-selection--single {
    border-color: var(--sf-ocean-bright) !important;
    box-shadow: 0 0 0 4px rgba(91, 164, 230, 0.15), var(--sf-shadow-sm) !important;
    outline: none !important;
}

.sf-body .select2-container--default .select2-selection--single:hover {
    border-color: var(--sf-ocean-soft) !important;
}

.sf-body .select2-container--default .select2-selection--single .select2-selection__rendered {
    color: var(--sf-text-dark) !important;
    line-height: 1.5 !important;
    padding: 6px 0 !important;
    font-weight: 500 !important;
}

.sf-body .select2-container--default .select2-selection--single .select2-selection__placeholder {
    color: var(--sf-text-muted) !important;
}

.sf-body .select2-dropdown {
    border: 2px solid var(--sf-ocean-soft) !important;
    border-radius: var(--sf-radius-md) !important;
    background: white !important;
    box-shadow: var(--sf-shadow-lg) !important;
    margin-top: 4px !important;
}

.sf-body .select2-results__option {
    padding: 0.75rem 1rem !important;
    font-weight: 500 !important;
    transition: var(--sf-transition-fast) !important;
}

.sf-body .select2-results__option--highlighted {
    background: linear-gradient(135deg, var(--sf-ocean-bright), var(--sf-ocean-soft)) !important;
    color: white !important;
}

.sf-body .select2-search--dropdown .select2-search__field {
    border: 2px solid var(--sf-sky-medium) !important;
    border-radius: var(--sf-radius-sm) !important;
    padding: 0.6rem !important;
    margin: 0.5rem !important;
    width: calc(100% - 1rem) !important;
    font-family: 'Nunito', sans-serif !important;
}

.sf-body .select2-search--dropdown .select2-search__field:focus {
    border-color: var(--sf-ocean-bright) !important;
    outline: none !important;
}

.sf-body .select2-container--default .select2-selection__arrow {
    height: 50px !important;
}

/* ============================================
   BUTTONS
   ============================================ */
.sf-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.9rem 1.75rem;
    border-radius: var(--sf-radius-lg);
    font-weight: 700;
    font-size: 0.95rem;
    font-family: 'Nunito', sans-serif;
    border: none;
    cursor: pointer;
    transition: var(--sf-transition-normal);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.sf-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.5s ease;
}

.sf-btn:hover::before {
    left: 100%;
}

.sf-btn i {
    transition: transform var(--sf-transition-normal);
}

.sf-btn:hover i {
    transform: translateX(4px);
}

/* Primary Button - Blue */
.sf-btn-primary {
    background: linear-gradient(135deg, var(--sf-ocean-bright), var(--sf-ocean-soft));
    color: white;
    box-shadow: 0 6px 20px rgba(91, 164, 230, 0.35);
}

.sf-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(91, 164, 230, 0.45);
    color: white;
}

/* Success Button - Green */
.sf-btn-success {
    background: linear-gradient(135deg, var(--sf-mint-fresh), var(--sf-mint-deep));
    color: white;
    box-shadow: 0 6px 20px rgba(107, 203, 158, 0.35);
}

.sf-btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(107, 203, 158, 0.45);
    color: white;
}

/* Coral Button */
.sf-btn-coral {
    background: linear-gradient(135deg, var(--sf-coral-warm), var(--sf-coral-bright));
    color: white;
    box-shadow: 0 6px 20px rgba(255, 140, 107, 0.35);
}

.sf-btn-coral:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 140, 107, 0.45);
    color: white;
}

/* Outline Button */
.sf-btn-outline {
    background: transparent;
    border: 2px solid var(--sf-ocean-bright);
    color: var(--sf-ocean-bright);
}

.sf-btn-outline:hover {
    background: var(--sf-ocean-bright);
    color: white;
    transform: translateY(-2px);
}

/* Large Button */
.sf-btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Full Width Button */
.sf-btn-block {
    width: 100%;
}

/* ============================================
   ALERTS / NOTICES
   ============================================ */
.sf-alert {
    padding: 1rem 1.25rem;
    border-radius: var(--sf-radius-lg);
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-weight: 500;
}

.sf-alert i {
    font-size: 1.1rem;
    margin-top: 0.15rem;
}

.sf-alert-info {
    background: var(--sf-sky-light);
    color: var(--sf-ocean-deep);
    border: 2px solid var(--sf-sky-medium);
}

.sf-alert-success {
    background: rgba(167, 232, 200, 0.3);
    color: #2d7a5e;
    border: 2px solid var(--sf-mint-soft);
}

.sf-alert-warning {
    background: var(--sf-sunshine-soft);
    color: #8a6d00;
    border: 2px solid var(--sf-sunshine);
}

.sf-alert-danger {
    background: var(--sf-danger-soft);
    color: #c53030;
    border: 2px solid rgba(239, 107, 107, 0.3);
}

/* ============================================
   FEATURE / INFO BOXES
   ============================================ */
.sf-info-box {
    background: var(--sf-sky-light);
    border: 2px solid var(--sf-sky-medium);
    border-radius: var(--sf-radius-lg);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.sf-info-box-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    color: var(--sf-ocean-deep);
}

.sf-info-box-header i {
    color: var(--sf-ocean-bright);
}

.sf-info-box p {
    color: var(--sf-text-soft);
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.6;
}

.sf-info-box ul {
    color: var(--sf-text-soft);
    margin: 0.5rem 0 0 0;
    padding-left: 1.25rem;
    font-size: 0.9rem;
}

.sf-info-box li {
    margin-bottom: 0.35rem;
}

/* ============================================
   CONTACT INFO PILLS
   ============================================ */
.sf-contact-info {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.sf-contact-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1.1rem;
    background: var(--sf-sky-light);
    border-radius: var(--sf-radius-full);
    transition: var(--sf-transition-normal);
    border: 2px solid transparent;
}

.sf-contact-item:hover {
    border-color: var(--sf-ocean-soft);
    transform: translateY(-2px);
    box-shadow: var(--sf-shadow-sm);
}

.sf-contact-item i {
    color: var(--sf-ocean-bright);
    font-size: 0.9rem;
}

.sf-contact-item span {
    font-size: 0.85rem;
    color: var(--sf-text-warm);
    font-weight: 600;
}

/* ============================================
   FOOTER
   ============================================ */
.sf-footer {
    text-align: center;
    padding: 2rem 0 3rem;
}

.sf-footer-emojis {
    font-size: 1.5rem;
    letter-spacing: 0.5rem;
    margin-bottom: 0.5rem;
}

.sf-footer-text {
    font-size: 0.85rem;
    color: var(--sf-text-light);
    font-weight: 600;
}

/* ============================================
   BACK LINK
   ============================================ */
.sf-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--sf-text-soft);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: var(--sf-radius-full);
    transition: var(--sf-transition-normal);
    margin-bottom: 1rem;
}

.sf-back-link:hover {
    color: var(--sf-ocean-bright);
    background: var(--sf-sky-light);
}

.sf-back-link i {
    transition: transform var(--sf-transition-normal);
}

.sf-back-link:hover i {
    transform: translateX(-4px);
}

/* ============================================
   PROGRESS / STEPS INDICATOR
   ============================================ */
.sf-steps {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.sf-step {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--sf-sky-medium);
    transition: var(--sf-transition-normal);
}

.sf-step.active {
    background: var(--sf-ocean-bright);
    width: 30px;
    border-radius: 10px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.sf-text-center { text-align: center; }
.sf-text-left { text-align: left; }
.sf-text-right { text-align: right; }

.sf-mt-1 { margin-top: 0.5rem; }
.sf-mt-2 { margin-top: 1rem; }
.sf-mt-3 { margin-top: 1.5rem; }
.sf-mt-4 { margin-top: 2rem; }
.sf-mb-1 { margin-bottom: 0.5rem; }
.sf-mb-2 { margin-bottom: 1rem; }
.sf-mb-3 { margin-bottom: 1.5rem; }
.sf-mb-4 { margin-bottom: 2rem; }

.sf-fade-in {
    opacity: 0;
    animation: sf-fadeUp 0.6s ease forwards;
}

.sf-fade-in-delay-1 { animation-delay: 0.1s; }
.sf-fade-in-delay-2 { animation-delay: 0.2s; }
.sf-fade-in-delay-3 { animation-delay: 0.3s; }
.sf-fade-in-delay-4 { animation-delay: 0.4s; }
.sf-fade-in-delay-5 { animation-delay: 0.5s; }

/* ============================================
   SCROLLBAR
   ============================================ */
.sf-body::-webkit-scrollbar {
    width: 10px;
}

.sf-body::-webkit-scrollbar-track {
    background: var(--sf-sky-light);
}

.sf-body::-webkit-scrollbar-thumb {
    background: var(--sf-ocean-soft);
    border-radius: 5px;
}

.sf-body::-webkit-scrollbar-thumb:hover {
    background: var(--sf-ocean-bright);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .sf-language-switcher {
        top: 1rem;
        right: 1rem;
    }

    .sf-language-option {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }

    .sf-hero {
        padding: 4rem 0 3rem;
    }

    .sf-hero-icon {
        width: 75px;
        height: 75px;
    }

    .sf-hero-icon i {
        font-size: 1.85rem;
    }

    .sf-hero-features {
        flex-direction: column;
        align-items: center;
        gap: 0.6rem;
    }

    .sf-hero-feature {
        width: 100%;
        max-width: 240px;
        justify-content: center;
    }

    .sf-form-section {
        padding: 2rem 1.25rem;
    }

    .sf-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .sf-section-description {
        padding-left: 0;
    }

    .sf-contact-info {
        flex-direction: column;
        align-items: center;
    }

    .sf-contact-item {
        width: 100%;
        max-width: 260px;
        justify-content: center;
    }

    .sf-main-container {
        margin-left: 0.5rem;
        margin-right: 0.5rem;
        border-radius: var(--sf-radius-xl);
    }
}

@media (max-width: 480px) {
    .sf-hero-title {
        font-size: 1.5rem;
    }

    .sf-hero-subtitle {
        font-size: 0.95rem;
    }

    .sf-section-icon {
        width: 42px;
        height: 42px;
    }

    .sf-section-icon i {
        font-size: 1.1rem;
    }

    .sf-section-title {
        font-size: 1.2rem;
    }

    .sf-btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
}