/* ============================================
   SMA PRESTASI PRIMA - Kelulusan Website
   Global Styles — Light / White Theme
   ============================================ */

:root {
    /* Brand Colors */
    --primary: #660066;
    --primary-light: #880088;
    --primary-lighter: #aa00aa;
    --primary-dark: #440044;
    --primary-pale: #f5e6f5;
    --primary-glow: rgba(102, 0, 102, 0.18);

    --accent: #9b1da0;
    --accent-light: #c44bc9;

    --success: #16a34a;
    --success-light: #22c55e;
    --success-pale: #f0fdf4;

    --danger: #dc2626;
    --danger-pale: #fef2f2;

    --gold: #c8920f;
    --gold-light: #e8b520;

    /* Light Neutrals */
    --white: #ffffff;
    --bg-main: #f8f5f8;        /* very faint purple tint */
    --bg-card: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f4f4f5;
    --gray-200: #e4e4e7;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(102,0,102,0.08), 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 16px rgba(102,0,102,0.12), 0 2px 6px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 40px rgba(102,0,102,0.14), 0 4px 16px rgba(0,0,0,0.08);
    --shadow-primary: 0 12px 32px rgba(102,0,102,0.22);
    --shadow-card: 0 15px 50px rgba(102,0,102,0.08), 0 5px 15px rgba(0,0,0,0.02);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg-main);
    color: var(--gray-800);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   BACKGROUND — light soft pattern
   ============================================ */
.bg-animated {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

/* Subtle decorative blobs */
.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    animation: orbFloat 18s ease-in-out infinite;
}

.orb-1 {
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--primary), transparent);
    top: -200px;
    right: -150px;
    animation-delay: 0s;
}

.orb-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent), transparent);
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #cc66cc, transparent);
    top: 40%;
    left: 35%;
    animation-delay: -9s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(40px, -40px) scale(1.05); }
    66%  { transform: translate(-30px, 30px) scale(0.95); }
}

.particles { position: absolute; inset: 0; }

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--primary-light);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0%   { transform: translateY(100vh) scale(0); opacity: 0; }
    10%  { opacity: 0.35; }
    90%  { opacity: 0.2; }
    100% { transform: translateY(-10vh) scale(1.5); opacity: 0; }
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 40px 20px;
    background:
        linear-gradient(180deg, rgba(102,0,102,0.04) 0%, transparent 70%),
        var(--bg-main);
}

.login-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

/* Header */
.login-header {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    animation: slideDown 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideDown {
    from { transform: translateY(-40px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

.school-logo { 
    display: flex; 
    align-items: center; 
    justify-content: center;
    margin-bottom: 4px;
}

.school-logo-img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    filter: drop-shadow(0 8px 16px rgba(102,0,102,0.15));
}

.school-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #ffffff;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    box-shadow: 0 4px 12px rgba(102,0,102,0.2);
    margin-bottom: 8px;
}

.school-name {
    font-family: var(--font-display);
    font-size: 34px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.school-sub {
    color: var(--gray-500);
    font-size: 14px;
    font-weight: 500;
}

/* Login Card */
.login-card {
    width: 100%;
    background: var(--white);
    border: 1px solid rgba(102,0,102,0.08);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    animation: slideUp 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both;
    overflow: hidden;
}

.login-card::before {
    content: '';
    display: block;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--accent-light));
}

@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

.login-card-inner {
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.login-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-pale);
    border: 1px solid rgba(102,0,102,0.12);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin: 0 auto 4px;
}

.login-title {
    font-size: 24px;
    font-weight: 800;
    text-align: center;
    color: var(--gray-900);
}

.login-desc {
    font-size: 15px;
    color: var(--gray-500);
    text-align: center;
    line-height: 1.6;
    margin-top: -12px;
}

/* Form */
.form-group { 
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
    margin-bottom: 12px;
}

.form-label {
    font-size: 14px;
    font-weight: 700;
    color: var(--gray-700);
    letter-spacing: 0.2px;
}

.input-wrapper { position: relative; display: flex; align-items: center; }

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    pointer-events: none;
    transition: color var(--transition-base);
}

.form-input {
    width: 100%;
    padding: 15px 16px 15px 48px;
    background: var(--gray-50);
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    color: var(--gray-900);
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all var(--transition-base);
    outline: none;
}

.form-input::placeholder {
    color: var(--gray-400);
    letter-spacing: 0;
    font-weight: 400;
}

.form-input:focus {
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(102,0,102,0.08);
}

.form-input:focus ~ .input-icon,
.input-wrapper:focus-within .input-icon { color: var(--primary); }

.form-hint { 
    font-size: 12px; 
    color: var(--gray-400); 
    margin-top: 4px;
    font-weight: 500;
}

/* Alert */
.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    animation: alertSlide 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-bottom: 8px;
}

@keyframes alertSlide {
    from { transform: scale(0.95); opacity: 0; }
    to   { transform: scale(1);    opacity: 1; }
}

.alert-error {
    background: var(--danger-pale);
    border: 1px solid rgba(220,38,38,0.2);
    color: #b91c1c;
}

/* Login Button */
.btn-login {
    position: relative;
    width: 100%;
    padding: 16px 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius-md);
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-primary);
    overflow: hidden;
    margin-top: 12px;
}

.btn-login:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102,0,102,0.35);
}

.btn-login:active:not(:disabled) { transform: translateY(-1px); }

.btn-icon {
    display: flex;
    align-items: center;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.btn-login:hover:not(:disabled) .btn-icon { transform: translateX(5px); }

.spinner {
    width: 20px;
    height: 20px;
    border: 2.5px solid rgba(255,255,255,0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.login-footer-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 12.5px;
    color: var(--gray-400);
    margin-top: 8px;
    font-weight: 500;
}

.login-page-footer {
    font-size: 13px;
    color: var(--gray-400);
    text-align: center;
    margin-top: 8px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 600px) {
    .login-wrapper { gap: 24px; }
    .school-logo-img { width: 80px; height: 80px; }
    .school-name { font-size: 28px; }
    .login-card-inner { padding: 36px 24px; gap: 24px; }
    .login-title { font-size: 20px; }
    .login-icon { width: 56px; height: 56px; }
    .form-input { font-size: 15px; padding: 13px 16px 13px 44px; }
    .input-icon { left: 14px; }
}

@media (max-width: 400px) {
    .school-name { font-size: 24px; }
    .login-card-inner { padding: 32px 18px; }
}