/* ===== STUDYHUB | PAKISTAN GREEN THEME ===== */

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

:root {
    --green: #046a38;
    --dark-green: #014421;
    --bright-green: #119b50;
    --white: #ffffff;
    --bg: #f4faf6;
    --text: #26382d;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.8;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 65px 20px;
    color: white;
    background: linear-gradient(135deg, #013b20, #046a38, #119b50);
    background-size: 200% 200%;
    animation: greenFlow 8s ease infinite;
    border-bottom: 5px solid #ffffff;
}

header h1 {
    font-size: clamp(2.8rem, 7vw, 4.5rem);
    font-weight: 800;
    letter-spacing: 2px;
    animation: fadeDown 0.8s ease both;
}

header p {
    color: #e1f5e8;
    margin-top: 10px;
    animation: fadeUp 1s ease both;
}

hr {
    border: none;
    height: 1px;
    background: #d7e9dd;
}

main {
    width: min(1200px, 92%);
    margin: auto;
}

section {
    padding: 60px 0;
    animation: fadeUp 0.8s ease both;
}

section h2 {
    color: var(--dark-green);
    font-size: clamp(1.7rem, 4vw, 2.5rem);
    line-height: 1.4;
    margin-bottom: 12px;
}

section > p { color: #647568; }

main > section:first-child {
    text-align: center;
    padding: 75px 15px 45px;
}

main > section:first-child h2 {
    color: var(--green);
}

/* ===== LARGE CLASS BOXES ===== */

#classes ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
    margin-top: 35px;
}

#classes li {
    min-height: 235px;
    display: flex;
    background: white;
    border: 1px solid #dcebe0;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(1, 68, 33, 0.07);
    transition: transform 0.35s ease,
                box-shadow 0.35s ease,
                border-color 0.35s ease;
    animation: fadeUp 0.7s ease both;
}

#classes li:nth-child(2) { animation-delay: .1s; }
#classes li:nth-child(3) { animation-delay: .2s; }
#classes li:nth-child(4) { animation-delay: .3s; }
#classes li:nth-child(5) { animation-delay: .4s; }

#classes li:hover {
    transform: translateY(-8px);
    border-color: var(--bright-green);
    box-shadow: 0 18px 38px rgba(4, 106, 56, 0.16);
}

#classes li a {
    width: 100%;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-decoration: none;
    color: inherit;
    border-left: 6px solid var(--green);
    transition: background 0.3s ease;
}

#classes li:nth-child(even) a {
    border-left-color: var(--bright-green);
}

#classes li:hover a {
    background: #f5fcf7;
}

#classes li h3 {
    color: var(--dark-green);
    font-size: 1.45rem;
    line-height: 1.5;
    margin-bottom: 10px;
}

#classes li p {
    color: #647568;
    font-size: .95rem;
}

#classes li a::after {
    content: 'Explore Resources  →';
    color: var(--green);
    font-size: .9rem;
    font-weight: 700;
    margin-top: 17px;
    transition: transform .3s ease;
}

#classes li:hover a::after {
    transform: translateX(7px);
}

/* ===== EDUCATIONAL GUIDANCE ===== */

#guidance article {
    background: white;
    padding: 25px 28px;
    margin: 18px 0;
    border-radius: 14px;
    border-left: 5px solid var(--green);
    box-shadow: 0 5px 20px rgba(1, 68, 33, .05);
    transition: transform .3s, box-shadow .3s;
}

#guidance article:hover {
    transform: translateX(7px);
    box-shadow: 0 12px 28px rgba(4, 106, 56, .12);
}

#guidance h3 { color: var(--green); }

/* ===== BENEFITS ===== */

#benefits ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

#benefits li {
    background: white;
    padding: 23px;
    border: 1px solid #dfebe2;
    border-radius: 14px;
    transition: transform .3s, border-color .3s;
}

#benefits li:hover {
    transform: translateY(-5px);
    border-color: var(--bright-green);
}

#benefits strong { color: var(--green); }

/* ===== FOOTER ===== */

footer {
    background: var(--dark-green);
    color: white;
    text-align: center;
    padding: 30px 15px;
    margin-top: 35px;
    border-top: 5px solid #e8f5eb;
    font-size: .9rem;
}

/* ===== ANIMATIONS ===== */

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-24px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes greenFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ===== RESPONSIVE DESIGN ===== */

@media (max-width: 700px) {
    header { padding: 45px 18px; }

    section { padding: 42px 0; }

    #classes ul,
    #benefits ul {
        grid-template-columns: 1fr;
    }

    #classes li { min-height: 210px; }

    #classes li a { padding: 24px; }

    #classes li h3 { font-size: 1.3rem; }

    #guidance article { padding: 22px; }
}

/* ===== REDUCE MOTION ===== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}
#guidance article a {
    text-decoration: none;
    color: inherit;
    display: block;
}

#guidance article {
    cursor: pointer;
}

/* =====================================
   STUDYHUB — LIGHT FUTURISTIC MODAL
   Emerald • Glass • Premium UI
===================================== */

.modern-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(8, 40, 25, 0.48);
    backdrop-filter: blur(9px);
    -webkit-backdrop-filter: blur(9px);
    animation: fadeIn 0.35s ease;
}

/* Main glass card */
.modern-modal-card {
    position: relative;
    width: 100%;
    max-width: 540px;
    padding: 40px 32px 30px;
    overflow: hidden;
    text-align: center;
    color: #173c2b;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid #d1f3df;
    border-radius: 25px;
    box-shadow: 0 25px 70px #003b201f;
    animation: cardEnter 0.55s ease both;
}

/* Soft emerald decoration */
.modern-modal-card .modal-glow {
    position: absolute;
    top: -100px;
    left: 50%;
    width: 260px;
    height: 180px;
    transform: translateX(-50%);
    background: #00c87820;
    filter: blur(55px);
    border-radius: 50%;
    pointer-events: none;
}

/* Subtle corner accents */
.modern-modal-card::before,
.modern-modal-card::after {
    content: "";
    position: absolute;
    width: 55px;
    height: 4px;
    border-radius: 10px;
    background: linear-gradient(90deg, #008b50, #6de6a7);
}

.modern-modal-card::before {
    top: 0;
    left: 30px;
}

.modern-modal-card::after {
    right: 30px;
    bottom: 0;
}

/* Board badge */
.modal-badge-wrapper {
    position: relative;
    margin-bottom: 24px;
}

.modern-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 9px 15px;
    color: #087443;
    background: #e9fbf0;
    border: 1px solid #c8efd8;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    flex-shrink: 0;
    background: #00a95c;
    border-radius: 50%;
    box-shadow: 0 0 0 4px #00a95c20;
    animation: pulse 1.8s infinite;
}

/* Heading */
.modern-modal-card h2 {
    position: relative;
    margin: 0 0 14px;
    color: #075b36;
    font-size: clamp(29px, 5vw, 41px);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -1px;
}

.modal-subtitle {
    max-width: 420px;
    margin: 0 auto 26px;
    color: #607568;
    font-size: 14px;
    line-height: 1.8;
}

/* Developer panel */
.modern-developer-box {
    position: relative;
    margin: 24px 0;
    padding: 22px 15px;
    background: linear-gradient(135deg, #f0fff5, #ffffff);
    border: 1px solid #d8f1e1;
    border-radius: 17px;
    transition: transform 0.3s ease,
                box-shadow 0.3s ease,
                border-color 0.3s ease;
}

.modern-developer-box:hover {
    transform: translateY(-3px);
    border-color: #80dba8;
    box-shadow: 0 12px 30px #08744312;
}

.dev-label {
    display: block;
    margin-bottom: 10px;
    color: #71877a;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.dev-name {
    margin: 0;
    color: #087443;
    font-size: clamp(23px, 4vw, 30px);
    font-weight: 900;
    letter-spacing: -0.5px;
}

.dev-underline {
    width: 55px;
    height: 3px;
    margin: 13px auto 0;
    background: linear-gradient(90deg, #00a95c, #91e9b6);
    border-radius: 5px;
    transition: width 0.3s ease;
}

.modern-developer-box:hover .dev-underline {
    width: 100px;
}

/* Premium button */
.modern-cta-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    min-height: 54px;
    padding: 15px 20px;
    overflow: hidden;
    color: #fff;
    background: linear-gradient(110deg, #087443, #0aa961);
    border: 1px solid #087443;
    border-radius: 13px;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 7px 20px #08744325;
    transition: transform 0.25s ease,
                box-shadow 0.25s ease,
                background 0.25s ease;
}

.modern-cta-btn:hover {
    transform: translateY(-2px);
    background: linear-gradient(110deg, #065d35, #078d50);
    box-shadow: 0 12px 28px #08744335;
}

.modern-cta-btn:active {
    transform: scale(0.98);
}

.modern-cta-btn:focus-visible {
    outline: 3px solid #65d99b;
    outline-offset: 4px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes cardEnter {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes pulse {
    50% {
        box-shadow: 0 0 0 7px #00a95c08;
    }
}

/* Mobile responsive */
@media (max-width: 480px) {
    .modern-modal-overlay {
        padding: 14px;
    }

    .modern-modal-card {
        padding: 36px 21px 24px;
        border-radius: 21px;
    }

    .modal-subtitle {
        font-size: 13px;
    }

    .modern-badge {
        font-size: 9px;
        letter-spacing: 1px;
    }

    .modern-cta-btn {
        font-size: 12px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .modern-modal-overlay,
    .modern-modal-card,
    .modern-modal-card *,
    .pulse-dot {
        animation: none !important;
        transition: none !important;
    }
}