/* ===========================================
   Mada Platform - Home Page
   Hero, Bubbles, Features, Stages, Grade Cards
   =========================================== */

/* ===========================================
   HERO SECTION
   =========================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--dark-gradient);
    overflow: hidden;
    padding: 120px 20px 80px;
}

.hero-section.hero-compact {
    min-height: 70vh;
    padding: 100px 20px 60px;
}

/* Animated Bubbles */
.bubbles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.bubble {
    position: absolute;
    bottom: -100px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.05));
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.15);
    animation: floatUp 15s infinite ease-in-out;
}

.bubble:nth-child(1) { left: 10%; width: 80px; height: 80px; animation-delay: 0s; animation-duration: 18s; }
.bubble:nth-child(2) { left: 20%; width: 40px; height: 40px; animation-delay: 2s; animation-duration: 15s; }
.bubble:nth-child(3) { left: 35%; width: 100px; height: 100px; animation-delay: 4s; animation-duration: 20s; }
.bubble:nth-child(4) { left: 50%; width: 60px; height: 60px; animation-delay: 1s; animation-duration: 16s; }
.bubble:nth-child(5) { left: 65%; width: 90px; height: 90px; animation-delay: 3s; animation-duration: 17s; }
.bubble:nth-child(6) { left: 80%; width: 50px; height: 50px; animation-delay: 5s; animation-duration: 14s; }
.bubble:nth-child(7) { left: 90%; width: 70px; height: 70px; animation-delay: 2.5s; animation-duration: 19s; }
.bubble:nth-child(8) { left: 5%; width: 55px; height: 55px; animation-delay: 6s; animation-duration: 16s; }

@keyframes floatUp {
    0% { transform: translateY(0) rotate(0deg); opacity: 0; }
    10% { opacity: 0.7; }
    90% { opacity: 0.7; }
    100% { transform: translateY(-120vh) rotate(720deg); opacity: 0; }
}

/* Home offers section */
.home-offers {
    margin-top: 20px;
    padding-top: 60px;
}

.home-offers .offers-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.home-offers .section-title-gradient,
.home-offers .section-subtitle {
    text-align: right;
}

.home-offers .offers-more {
    padding: 12px 22px;
    border-radius: 999px;
}

.home-offers-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin: 0 0 24px;
}

.home-filter-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(47, 91, 255, 0.2);
    background: #ffffff;
    color: #0f172a;
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.home-filter-pill:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.1);
}

.home-filter-pill.active {
    border-color: transparent;
    background: var(--primary-gradient);
    color: #ffffff;
    box-shadow: 0 12px 24px rgba(47, 91, 255, 0.24);
}

/* ===========================================
   GLASS FEATURE CARDS IN HERO
   =========================================== */
.hero-features {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
    margin: 40px auto;
    max-width: 800px;
    padding: 0 15px;
}

@media (max-width: 768px) {
    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        max-width: 400px;
    }
    .hero-features .glass-feature-card:last-child:nth-child(odd) {
        grid-column: span 2;
        width: 50%;
        margin: 0 auto;
    }
}

.glass-feature-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    min-height: 110px;
    background: rgba(255, 255, 255, 0.12);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out backwards;
    cursor: pointer;
}

.glass-feature-card:nth-child(1) { animation-delay: 0.2s; }
.glass-feature-card:nth-child(2) { animation-delay: 0.3s; }
.glass-feature-card:nth-child(3) { animation-delay: 0.4s; }
.glass-feature-card:nth-child(4) { animation-delay: 0.5s; }
.glass-feature-card:nth-child(5) { animation-delay: 0.6s; }

.glass-feature-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
}

.glass-icon { font-size: 1.8rem; }
.glass-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    text-align: center;
    line-height: 1.2;
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.curriculum-hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    padding: 6px 14px;
    color: #ffffff;
    margin-bottom: 16px;
}

.curriculum-hero-chip .chip-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.55);
    font-weight: 800;
    font-size: 0.82rem;
}

.curriculum-hero-chip .chip-text {
    font-size: 0.9rem;
    font-weight: 700;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    color: white;
    margin-bottom: 25px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-title span {
    background: var(--secondary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 35px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--secondary-gradient);
    color: white;
    box-shadow: 0 10px 40px rgba(246, 197, 107, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(246, 197, 107, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

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

/* ===========================================
   SMART PATH SECTION
   =========================================== */
.smart-path-section {
    padding: 60px 20px 80px;
    background: var(--bg-light);
}

.smart-path-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 28px;
    border: 1px solid rgba(47, 91, 255, 0.12);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.1);
}

.smart-path-header h2 {
    font-size: 1.7rem;
    font-weight: 800;
    margin-bottom: 6px;
}

.smart-path-header p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.smart-path-form {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
    gap: 16px;
    align-items: end;
}

.smart-field label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.smart-field select {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    background: #ffffff;
    font-family: inherit;
    font-size: 0.95rem;
}

.smart-path-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border-radius: 14px;
    background: var(--primary-gradient);
    color: #ffffff;
    font-weight: 700;
    min-width: 160px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.smart-path-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(47, 91, 255, 0.3);
}

.smart-path-btn.disabled {
    opacity: 0.6;
    pointer-events: none;
}

.smart-path-hint {
    margin-top: 14px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .smart-path-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .smart-path-btn {
        grid-column: 1 / -1;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .smart-path-form {
        grid-template-columns: 1fr;
    }
}

/* Hero Logo */
.hero-logo {
    margin-bottom: 25px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-logo img {
    width: 120px;
    height: 120px;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ===========================================
   STAGE SECTIONS - 3D CENTERED DESIGN
   =========================================== */
.stage-section {
    padding: 0;
    margin-bottom: 120px;
}

.stage-header-3d {
    padding: 60px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 50% 100%, 0 85%);
    padding-bottom: 80px;
    margin-bottom: -40px;
}

.primary-gradient-bg {
    background: linear-gradient(135deg, #2f5bff 0%, #1d3fbf 100%);
    box-shadow: 0 20px 50px -10px rgba(47, 91, 255, 0.45);
    border-bottom: 4px solid rgba(0,0,0,0.1);
}

.middle-gradient-bg {
    background: linear-gradient(135deg, #12b6a6 0%, #0a8a7d 100%);
    box-shadow: 0 20px 50px -10px rgba(18, 182, 166, 0.4);
    border-bottom: 4px solid rgba(0,0,0,0.1);
}

.secondary-gradient-bg {
    background: linear-gradient(135deg, #f6c56b 0%, #d9a447 100%);
    box-shadow: 0 20px 50px -10px rgba(246, 197, 107, 0.4);
    border-bottom: 4px solid rgba(0,0,0,0.1);
}

.stage-header-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.stage-icon-3d {
    font-size: 4rem;
    margin-bottom: 15px;
    animation: bounce3d 2s ease-in-out infinite;
    filter: drop-shadow(0 8px 15px rgba(0, 0, 0, 0.3));
}

.stage-icon-3d.icon-shell {
    width: 96px;
    height: 96px;
    border-radius: 26px;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: var(--icon-bg, rgba(255, 255, 255, 0.18));
    justify-content: var(--icon-justify, center);
}

@keyframes bounce3d {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.05); }
}

.stage-name-3d {
    font-size: 2.5rem;
    font-weight: 900;
    color: white;
    margin-bottom: 10px;
    text-shadow: 
        0 2px 0 rgba(0, 0, 0, 0.1),
        0 4px 0 rgba(0, 0, 0, 0.08),
        0 6px 0 rgba(0, 0, 0, 0.06),
        0 8px 15px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
    animation: fadeInUp 0.8s ease-out;
}

.stage-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.stage-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* ===========================================
   GRADE CARDS - UNIFIED 3D DESIGN
   =========================================== */
.grades-container {
    --grade-card-width: 252px;
    --grade-card-height: 292px;
    --grade-card-radius: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--grade-card-width), var(--grade-card-width)));
    gap: 26px;
    justify-content: center;
    align-items: stretch;
    perspective: 1700px;
    perspective-origin: center 16%;
}

.grade-card-circle {
    --card-accent: var(--hover-color, #3b82f6);
    --card-accent-2: #06b6d4;
    --card-accent-3: #4f46e5;
    --card-bg-start: #ffffff;
    --card-bg-mid: #ffffff;
    --card-bg-end: #f8fafc;
    --card-orb-main: rgba(255, 255, 255, 0.45);
    --card-orb-soft: rgba(255, 255, 255, 0.26);
    --circle-bg-top: #ffffff;
    --circle-bg-bottom: #eef2f7;
    --circle-border: rgba(203, 213, 225, 0.95);
    --circle-ring: rgba(148, 163, 184, 0.52);
    --circle-ring-glow: rgba(148, 163, 184, 0.2);
    --circle-shadow: rgba(15, 23, 42, 0.2);
    --circle-inner-shadow: rgba(148, 163, 184, 0.18);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    text-decoration: none;
    width: var(--grade-card-width);
    min-height: var(--grade-card-height);
    height: var(--grade-card-height);
    padding: 26px 16px 18px;
    border-radius: var(--grade-card-radius);
    background:
        radial-gradient(circle at 12% 10%, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.6) 36%, transparent 62%),
        radial-gradient(circle at 88% 84%, rgba(255, 255, 255, 0.22) 0%, transparent 58%),
        linear-gradient(164deg, var(--card-bg-start) 0%, var(--card-bg-mid) 48%, var(--card-bg-end) 100%);
    border: 1.5px solid color-mix(in srgb, var(--card-accent) 34%, #cbd5e1);
    box-shadow:
        0 26px 38px rgba(15, 23, 42, 0.16),
        0 10px 18px rgba(15, 23, 42, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.72),
        inset 0 1px 0 rgba(255, 255, 255, 0.94),
        inset 0 -14px 24px rgba(15, 23, 42, 0.05);
    position: relative;
    overflow: hidden;
    isolation: isolate;
    transform-style: preserve-3d;
    backface-visibility: hidden;
    transform: translateZ(0) rotateX(0deg) rotateY(0deg);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.3s ease;
    animation: grade-card-enter 0.7s cubic-bezier(0.25, 0.9, 0.2, 1) both;
    filter: saturate(1.06);
}

.grade-card-circle::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 7px;
    border-radius: var(--grade-card-radius) var(--grade-card-radius) 10px 10px;
    background:
        linear-gradient(90deg,
            color-mix(in srgb, var(--card-accent) 86%, #ffffff) 0%,
            color-mix(in srgb, var(--card-accent-2) 86%, #ffffff) 52%,
            color-mix(in srgb, var(--card-accent-3) 82%, #ffffff) 100%);
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.grade-card-circle::after {
    content: "";
    position: absolute;
    width: 160px;
    height: 160px;
    border-radius: 999px;
    bottom: -58px;
    left: -38px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.7) 0%, transparent 68%);
    filter: blur(1.5px);
    opacity: 0.72;
    pointer-events: none;
    z-index: 0;
}

.grade-card-circle > * {
    position: relative;
    z-index: 1;
}

.grades-container .grade-card-circle:nth-child(1) { animation-delay: 0.05s; }
.grades-container .grade-card-circle:nth-child(2) { animation-delay: 0.12s; }
.grades-container .grade-card-circle:nth-child(3) { animation-delay: 0.19s; }
.grades-container .grade-card-circle:nth-child(4) { animation-delay: 0.26s; }
.grades-container .grade-card-circle:nth-child(5) { animation-delay: 0.33s; }
.grades-container .grade-card-circle:nth-child(6) { animation-delay: 0.4s; }

.grade-card-circle:hover {
    transform: translateY(-14px) rotateX(10deg) rotateY(-8deg) scale(1.015);
    border-color: color-mix(in srgb, var(--card-accent-2) 56%, var(--card-accent));
    box-shadow:
        0 46px 62px color-mix(in srgb, var(--card-accent) 26%, rgba(15, 23, 42, 0.18)),
        0 20px 30px rgba(15, 23, 42, 0.19),
        inset 0 1px 0 rgba(255, 255, 255, 0.96),
        inset 0 -14px 26px rgba(148, 163, 184, 0.18);
    filter: saturate(1.08);
}

.grade-card-circle:hover::before {
    opacity: 1;
}

.grade-card-circle:active {
    transform: translateY(-10px) rotateX(8deg) rotateY(-6deg) scale(0.995);
}

.grade-circle {
    width: 118px;
    height: 118px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    position: relative;
    border: 1px solid var(--circle-border);
    background:
        radial-gradient(circle at 26% 18%, rgba(255, 255, 255, 0.98) 0%, var(--circle-bg-top) 38%, var(--circle-bg-bottom) 100%);
    box-shadow:
        0 18px 28px var(--circle-shadow),
        inset 0 16px 22px rgba(255, 255, 255, 0.78),
        inset 0 -12px 22px var(--circle-inner-shadow);
    transform: translateZ(42px);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.45s ease;
    animation: grade-circle-breathe 4.6s ease-in-out infinite;
}

.grade-circle::before {
    content: "";
    position: absolute;
    inset: -10px;
    border-radius: 999px;
    border: 2px solid var(--circle-ring);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.86),
        0 8px 16px var(--circle-ring-glow);
}

.grade-circle::after {
    content: "";
    position: absolute;
    top: 14px;
    right: 18px;
    width: 16px;
    height: 16px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.92) 0%, rgba(255, 255, 255, 0) 74%);
    opacity: 0.9;
}

.grade-card-circle:hover .grade-circle {
    transform: translateZ(54px) scale(1.06);
    box-shadow:
        0 26px 42px rgba(15, 23, 42, 0.22),
        inset 0 14px 24px rgba(255, 255, 255, 0.84),
        inset 0 -16px 26px rgba(148, 163, 184, 0.2);
    animation-play-state: paused;
}

.grade-num {
    font-size: clamp(2.55rem, 3.9vw, 3.35rem);
    font-weight: 900;
    letter-spacing: 0.03em;
    color: #ffffff;
    line-height: 1;
    -webkit-text-stroke: 1.1px rgba(15, 23, 42, 0.72);
    text-shadow:
        0 1px 0 rgba(255, 255, 255, 0.55),
        0 7px 12px rgba(15, 23, 42, 0.34);
    filter: drop-shadow(0 6px 10px rgba(15, 23, 42, 0.25));
    transition: transform 0.35s ease, filter 0.35s ease;
}

.grade-card-circle:hover .grade-num {
    transform: scale(1.06);
    filter: drop-shadow(0 9px 13px rgba(15, 23, 42, 0.32));
}

.grade-label {
    margin: 0;
    color: #0f172a;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 900;
    line-height: 1.42;
    min-height: 3.05em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-wrap: balance;
}

.grade-meta {
    margin: auto 0 0;
    font-size: 0.83rem;
    font-weight: 800;
    letter-spacing: 0.01em;
    color: #334155;
    opacity: 0.9;
}

@keyframes grade-card-enter {
    from {
        opacity: 0;
        transform: translateY(26px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes grade-card-glow {
    0%, 100% {
        transform: translate3d(-12%, 0, 0);
    }
    50% {
        transform: translate3d(10%, 8%, 0);
    }
}

@keyframes grade-circle-breathe {
    0%, 100% {
        transform: translateZ(42px) scale(1);
    }
    50% {
        transform: translateZ(46px) scale(1.03);
    }
}

@keyframes grade-edge-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes grade-sheen {
    0%, 100% {
        transform: translateX(-62%);
        opacity: 0;
    }
    20% {
        opacity: 0.6;
    }
    55% {
        transform: translateX(56%);
        opacity: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .grade-card-circle,
    .grade-card-circle::before,
    .grade-circle {
        animation: none !important;
    }

    .grade-card-circle {
        transition: none !important;
    }

    .grade-card-circle:hover,
    .grade-card-circle:active,
    .grade-card-circle:hover .grade-circle {
        transform: none !important;
    }
}

/* ===========================================
   FEATURES SECTION
   =========================================== */
.features-section {
    padding: 80px 20px;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.section-title span {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
    border-color: var(--feature-color, var(--primary-color));
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--feature-color, var(--color-primary, #2f5bff)) 15%, white),
        color-mix(in srgb, var(--feature-color, var(--color-primary, #2f5bff)) 25%, white));
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===========================================
   FEATURED COURSES
   =========================================== */
.featured-section {
    padding: 80px 20px;
    background: var(--bg-light);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.course-card {
    background: #ffffff;
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid rgba(47, 91, 255, 0.12);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.1);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.14);
}

.course-image {
    position: relative;
    height: 180px;
    background: #e2e8f0;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.badge-free,
.badge-price {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    color: #ffffff;
}

.badge-free {
    background: linear-gradient(135deg, #22c55e, #16a34a);
}

.badge-price {
    background: rgba(15, 23, 42, 0.85);
}

.course-content {
    padding: 18px 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
    position: relative;
}

.course-content h3 {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.5;
    margin: 0;
    min-height: 3em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-content .instructor {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    min-height: 2.2em;
    line-height: 1.35;
}

.instructor-name {
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.instructor-rating {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid rgba(129, 140, 248, 0.35);
    background: linear-gradient(135deg, rgba(76, 29, 149, 0.12), rgba(37, 99, 235, 0.14));
    color: #4338ca;
    font-size: 0.76rem;
    font-weight: 800;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.course-meta span {
    background: rgba(47, 91, 255, 0.08);
    padding: 4px 10px;
    border-radius: 999px;
}

.btn-enroll {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 14px;
    background: var(--primary-gradient);
    color: #ffffff;
    font-weight: 700;
    transition: var(--transition);
}

.btn-enroll:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 26px rgba(47, 91, 255, 0.28);
}

/* ===========================================
   FEATURED TEACHERS
   =========================================== */
.teachers-section {
    padding: 80px 20px;
}

.teachers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 22px;
}

.teacher-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 24px 18px;
    text-align: center;
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.teacher-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
}

.teacher-image {
    width: 96px;
    height: 96px;
    margin: 0 auto 14px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(47, 91, 255, 0.28);
}

.teacher-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.teacher-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.teacher-card .specialization {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.teacher-stats {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.teacher-stats span {
    background: #f1f5f9;
    padding: 4px 8px;
    border-radius: 999px;
}

/* ===========================================
   RESPONSIVE - HOME PAGE
   =========================================== */
@media (max-width: 768px) {
    .stats-section,
    .smart-path-section {
        display: none !important;
    }

    .hero-title { font-size: 2rem; }
    .hero-cta { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 300px; justify-content: center; }
    .stage-title-wrapper { flex-direction: column; text-align: center; }
    .stage-title-info h2 { font-size: 1.6rem; }
    .grade-number { font-size: 3rem; }
    .grades-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .grade-card-new { padding: 20px 15px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .feature-card { padding: 25px 15px; }
    .feature-icon { width: 60px; height: 60px; font-size: 2rem; }
    .section-title { font-size: 2rem; }
    .courses-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .teachers-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .courses-grid,
    .teachers-grid {
        align-items: start;
    }

    .course-card,
    .teacher-card {
        height: auto;
    }

    .course-content {
        direction: rtl;
        text-align: right;
        align-items: stretch;
    }

    .course-content h3 {
        margin: 0;
        min-height: 0;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .course-content .instructor {
        margin: 0;
        min-height: 0;
        line-height: 1.35;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .course-meta {
        justify-content: flex-start;
    }

    .btn-enroll {
        width: 100%;
        margin-top: 2px;
    }

    .teacher-card {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        text-align: center;
    }

    .teacher-card h3 {
        margin: 0 0 4px;
        min-height: 2.7em;
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .teacher-card .specialization {
        margin: 0 0 10px;
        min-height: 2.4em;
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .teacher-stats {
        width: 100%;
        justify-content: center;
        gap: 6px;
    }

    .stage-content {
        padding: 34px 10px;
    }

    .grades-container {
        --grade-card-width: min(46vw, 214px);
        --grade-card-height: calc(var(--grade-card-width) * 1.14);
        display: grid !important;
        grid-template-columns: repeat(2, var(--grade-card-width)) !important;
        gap: 14px !important;
        justify-content: center !important;
        align-items: stretch;
        max-width: calc(var(--grade-card-width) * 2 + 14px);
        margin: 0 auto;
    }

    .grade-card-circle {
        width: var(--grade-card-width) !important;
        min-height: var(--grade-card-height);
        height: var(--grade-card-height);
        padding: 18px 12px 14px;
        border-radius: 24px;
    }

    .grade-circle {
        width: 90px;
        height: 90px;
        border-radius: 999px;
        margin-bottom: 12px;
    }

    .grade-num {
        font-size: 2.18rem;
    }

    .grade-label {
        font-size: 1.02rem;
        line-height: 1.4;
        min-height: 2.95em;
    }

    .grade-meta {
        font-size: 0.78rem;
    }
}

@media (max-width: 480px) {
    .grades-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .courses-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 10px;
    }
    .teachers-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
        gap: 10px;
    }

    .course-card {
        border-radius: 16px;
    }

    .course-image {
        height: 120px;
    }

    .course-content {
        padding: 12px 10px 14px;
        gap: 8px;
    }

    .course-content h3 {
        font-size: 0.9rem;
        line-height: 1.35;
    }

    .course-content .instructor,
    .course-meta {
        font-size: 0.75rem;
    }

    .instructor-rating {
        font-size: 0.68rem;
        padding: 2px 6px;
    }

    .course-meta {
        gap: 6px;
    }

    .course-meta span {
        padding: 3px 7px;
        border-radius: 999px;
        white-space: nowrap;
    }

    .btn-enroll {
        padding: 8px 10px;
        font-size: 0.82rem;
        border-radius: 10px;
    }

    .teacher-card {
        padding: 14px 10px;
        border-radius: 16px;
    }

    .teacher-image {
        width: 64px;
        height: 64px;
        margin-bottom: 10px;
    }

    .teacher-card h3 {
        font-size: 0.9rem;
        margin-bottom: 4px;
    }

    .teacher-card .specialization,
    .teacher-stats {
        font-size: 0.75rem;
    }

    .stage-content {
        padding: 24px 8px;
    }

    .grades-container {
        --grade-card-width: min(45vw, 176px);
        --grade-card-height: calc(var(--grade-card-width) * 1.15);
        display: grid !important;
        grid-template-columns: repeat(2, var(--grade-card-width)) !important;
        gap: 10px !important;
        max-width: calc(var(--grade-card-width) * 2 + 10px);
        margin-inline: auto;
    }

    .grade-card-circle {
        width: var(--grade-card-width) !important;
        min-height: var(--grade-card-height);
        height: var(--grade-card-height);
        padding: 14px 10px 12px;
        border-radius: 20px;
    }

    .grade-circle {
        width: 76px;
        height: 76px;
        border-radius: 999px;
        margin-bottom: 10px;
    }

    .grade-num {
        font-size: 1.88rem;
    }

    .grade-label {
        font-size: 0.92rem;
        min-height: 2.75em;
    }

    .grade-meta {
        font-size: 0.72rem;
    }
}

.stage-icon-3d img.stage-icon-image {
    width: var(--icon-size, 60%);
    height: var(--icon-size, 60%);
    object-fit: contain;
}