/* ========================================
   KAIZEN DENTAL ACADEMY — STUDENT PORTAL
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --sp-bg: #0a0907;
    --sp-surface: #14110d;
    --sp-surface-2: #1c1812;
    --sp-surface-3: #262119;
    --sp-border: rgba(255,255,255,0.06);
    --sp-border-hover: rgba(255,255,255,0.12);
    --sp-text: #e8e8ed;
    --sp-text-dim: rgba(255,255,255,0.5);
    --sp-text-muted: rgba(255,255,255,0.35);
    --sp-accent: #c77111;
    --sp-accent-light: #e7af20;
    --sp-accent-dim: rgba(199,113,17,0.12);
    --sp-success: #22c55e;
    --sp-warning: #f59e0b;
    --sp-danger: #ef4444;
    --sp-info: #e7af20;
    --sp-radius: 16px;
    --sp-radius-sm: 10px;
    --sp-transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--sp-bg);
    color: var(--sp-text);
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(199, 113, 17, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(231, 175, 32, 0.03) 0%, transparent 40%);
    background-attachment: fixed;
    background-size: cover;
    -webkit-font-smoothing: antialiased;
}

/* ─── AUTH SCREENS ─── */
.sp-auth-screen {
    min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 2rem;
}
.sp-auth-card {
    background: rgba(20, 17, 13, 0.6);
    -webkit-backdrop-filter: blur(40px);
    backdrop-filter: blur(40px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px; padding: 2.5rem; max-width: 440px; width: 100%;
    box-shadow: 0 20px 80px rgba(0,0,0,0.6);
}
.sp-auth-card .sp-logo { display: block; height: 44px; margin: 0 auto 1.5rem; }
.sp-auth-card h1 { text-align: center; font-size: 1.5rem; font-weight: 800; margin-bottom: 0.5rem; }
.sp-auth-card .sp-subtitle { text-align: center; color: var(--sp-text-dim); font-size: 0.9rem; margin-bottom: 2rem; }
.sp-form-group { margin-bottom: 1.25rem; }
.sp-form-group label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--sp-text-dim); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 0.4rem; }
.sp-input {
    width: 100%; padding: 0.8rem 1rem; background: var(--sp-surface-2);
    border: 1px solid var(--sp-border); border-radius: var(--sp-radius-sm);
    color: var(--sp-text); font-size: 0.95rem; font-family: inherit;
    transition: border-color var(--sp-transition);
}
.sp-input:focus { outline: none; border-color: var(--sp-accent); }
.sp-btn-primary {
    width: 100%; padding: 0.875rem; background: linear-gradient(135deg, var(--sp-accent), #a85d0e);
    color: #fff; border: none; border-radius: var(--sp-radius-sm);
    font-weight: 700; font-size: 1rem; cursor: pointer;
    transition: all var(--sp-transition); font-family: inherit;
}
.sp-btn-primary:hover { box-shadow: 0 8px 30px rgba(199,113,17,0.4); transform: translateY(-1px); }
.sp-btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.sp-btn-secondary {
    width: 100%; padding: 0.8rem; background: transparent;
    border: 2px solid var(--sp-border); border-radius: var(--sp-radius-sm);
    color: var(--sp-text-dim); font-weight: 600; font-size: 0.9rem;
    cursor: pointer; transition: all var(--sp-transition); font-family: inherit; margin-top: 0.75rem;
}
.sp-btn-secondary:hover { border-color: var(--sp-border-hover); color: var(--sp-text); }
.sp-divider { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0; color: var(--sp-text-muted); font-size: 0.8rem; }
.sp-divider::before, .sp-divider::after { content: ''; flex: 1; height: 1px; background: var(--sp-border); }
.sp-auth-toggle { text-align: center; margin-top: 1.5rem; font-size: 0.875rem; color: var(--sp-text-dim); }
.sp-auth-toggle a { color: var(--sp-accent); text-decoration: none; font-weight: 600; cursor: pointer; }
.sp-auth-toggle a:hover { color: var(--sp-accent-light); }
.sp-error { color: var(--sp-danger); font-size: 0.85rem; margin-top: 0.75rem; display: none; text-align: center; }
.sp-forgot { display: block; text-align: right; font-size: 0.8rem; color: var(--sp-text-muted); text-decoration: none; margin-top: -0.5rem; margin-bottom: 1.25rem; }
.sp-forgot:hover { color: var(--sp-accent); }

/* ─── DASHBOARD LAYOUT ─── */
.sp-dashboard {
    min-height: 100vh; background: var(--sp-bg);
    padding: 5rem 2rem 4rem;
}
.sp-container { max-width: 960px; margin: 0 auto; }
.sp-dashboard-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 2.5rem; flex-wrap: wrap; gap: 1rem;
}
.sp-welcome h1 { font-size: 1.75rem; font-weight: 800; }
.sp-welcome h1 span { background: linear-gradient(135deg, var(--sp-accent), var(--sp-accent-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.sp-welcome p { color: var(--sp-text-dim); font-size: 0.9rem; margin-top: 0.25rem; }
.sp-header-actions { display: flex; gap: 0.75rem; }
.sp-header-btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.6rem 1.25rem; border-radius: var(--sp-radius-sm);
    font-size: 0.85rem; font-weight: 600; cursor: pointer;
    transition: all var(--sp-transition); text-decoration: none; font-family: inherit;
}
.sp-header-btn.outline { background: transparent; border: 1px solid var(--sp-border); color: var(--sp-text-dim); }
.sp-header-btn.outline:hover { border-color: var(--sp-border-hover); color: var(--sp-text); }
.sp-header-btn.danger { background: transparent; border: 1px solid rgba(239,68,68,0.2); color: var(--sp-danger); }
.sp-header-btn.danger:hover { background: rgba(239,68,68,0.08); }

/* ─── TABS ─── */
.sp-tabs {
    display: flex; gap: 0.25rem; 
    background: rgba(20, 18, 15, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--sp-border); border-radius: var(--sp-radius);
    padding: 0.3rem; margin-bottom: 2rem; overflow-x: auto;
}
.sp-tab {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.7rem 1rem; border-radius: var(--sp-radius-sm);
    font-size: 0.85rem; font-weight: 600; color: var(--sp-text-dim);
    cursor: pointer; transition: all var(--sp-transition);
    border: none; background: none; font-family: inherit; white-space: nowrap;
}
.sp-tab:hover { color: var(--sp-text); }
.sp-tab.active { background: var(--sp-accent-dim); color: var(--sp-accent-light); }
.sp-tab svg { width: 18px; height: 18px; flex-shrink: 0; }
.sp-tab-panel { display: none; }
.sp-tab-panel.active { display: block; animation: spFadeIn 0.3s ease; }
@keyframes spFadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ─── COURSE CARDS ─── */
.sp-courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.sp-course-card {
    background: rgba(20, 18, 15, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius); padding: 1.75rem;
    transition: all var(--sp-transition); position: relative; overflow: hidden;
}
.sp-course-card:hover { border-color: var(--sp-accent); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
.sp-course-card .sp-course-status { position: absolute; top: 1.25rem; right: 1.25rem; }
.sp-course-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; padding-right: 5rem; }
.sp-course-card .sp-course-meta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1rem; font-size: 0.8rem; color: var(--sp-text-muted); }
.sp-course-card .sp-course-meta span { display: flex; align-items: center; gap: 0.35rem; }
.sp-course-card .sp-course-actions { margin-top: 1.25rem; display: flex; gap: 0.5rem; }
.sp-course-action-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.5rem 1rem; border-radius: 50px; font-size: 0.8rem; font-weight: 600;
    text-decoration: none; transition: all var(--sp-transition); cursor: pointer; border: none; font-family: inherit;
}
.sp-course-action-btn.gold { background: var(--sp-accent-dim); color: var(--sp-accent); }
.sp-course-action-btn.gold:hover { background: rgba(199,113,17,0.2); }
.sp-course-action-btn.outline { background: transparent; border: 1px solid var(--sp-border); color: var(--sp-text-dim); }

/* ─── BADGES ─── */
.sp-badge { display: inline-flex; align-items: center; padding: 0.2rem 0.7rem; border-radius: 50px; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; }
.sp-badge-confirmed { background: rgba(34,197,94,0.12); color: var(--sp-success); }
.sp-badge-pending { background: rgba(245,158,11,0.12); color: var(--sp-warning); }
.sp-badge-failed { background: rgba(239,68,68,0.12); color: var(--sp-danger); }
.sp-badge-active { background: rgba(59,130,246,0.12); color: var(--sp-info); }
.sp-badge-completed { background: rgba(34,197,94,0.12); color: var(--sp-success); }

/* ─── PAYMENT TABLE ─── */
.sp-table-wrap {
    background: var(--sp-surface); border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius); overflow: hidden;
}
.sp-table { width: 100%; border-collapse: collapse; }
.sp-table thead { background: var(--sp-surface-2); }
.sp-table th { padding: 0.75rem 1.25rem; text-align: left; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--sp-text-muted); font-weight: 600; }
.sp-table td { padding: 1rem 1.25rem; border-top: 1px solid var(--sp-border); font-size: 0.875rem; }
.sp-table tr:hover td { background: rgba(255,255,255,0.015); }

/* ─── PROFILE FORM ─── */
.sp-profile-card {
    background: var(--sp-surface); border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius); padding: 2rem;
}
.sp-profile-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.sp-profile-card h3 svg { color: var(--sp-accent); }
.sp-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.sp-save-btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.7rem 1.75rem; background: linear-gradient(135deg, var(--sp-accent), #a85d0e);
    color: #fff; border: none; border-radius: var(--sp-radius-sm);
    font-weight: 600; font-size: 0.9rem; cursor: pointer;
    transition: all var(--sp-transition); margin-top: 1.5rem; font-family: inherit;
}
.sp-save-btn:hover { box-shadow: 0 6px 25px rgba(199,113,17,0.35); }

/* ─── EMPTY STATE ─── */
.sp-empty {
    text-align: center; padding: 4rem 2rem;
    background: var(--sp-surface); border: 1px solid var(--sp-border);
    border-radius: var(--sp-radius);
}
.sp-empty-icon { width: 64px; height: 64px; margin: 0 auto 1.5rem; border-radius: 50%; background: var(--sp-accent-dim); display: flex; align-items: center; justify-content: center; color: var(--sp-accent); }
.sp-empty h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.sp-empty p { color: var(--sp-text-dim); font-size: 0.9rem; margin-bottom: 1.5rem; }
.sp-empty a { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 1.5rem; background: var(--sp-accent-dim); color: var(--sp-accent); border-radius: 50px; text-decoration: none; font-weight: 600; font-size: 0.9rem; transition: all var(--sp-transition); }
.sp-empty a:hover { background: rgba(199,113,17,0.2); }

/* ─── ENROLL MODAL ─── */
.sp-modal-overlay {
    position: fixed; inset: 0; z-index: 1000;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(8px);
    display: none; align-items: center; justify-content: center; padding: 2rem;
}
.sp-modal-overlay.show { display: flex; }
.sp-modal {
    background: var(--sp-surface); border: 1px solid var(--sp-border);
    border-radius: 20px; padding: 2.5rem; max-width: 480px; width: 100%;
    position: relative; box-shadow: 0 20px 80px rgba(0,0,0,0.6);
}
.sp-modal-close { position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: var(--sp-text-dim); cursor: pointer; font-size: 1.5rem; padding: 0.5rem; line-height: 1; }
.sp-modal h2 { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; }
.sp-modal .sp-modal-subtitle { color: var(--sp-text-dim); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* InstaPay payment section */
.sp-instapay-info { background: var(--sp-surface-2); border-radius: var(--sp-radius-sm); padding: 1.25rem; margin-bottom: 1.25rem; }
.sp-instapay-info h4 { font-size: 0.85rem; margin-bottom: 0.75rem; color: var(--sp-accent); }
.sp-instapay-info .sp-instapay-number { font-size: 1.25rem; font-weight: 700; font-family: monospace; letter-spacing: 2px; margin-bottom: 0.5rem; }
.sp-instapay-info .sp-copy-btn { font-size: 0.8rem; color: var(--sp-accent); cursor: pointer; background: none; border: none; font-family: inherit; }
.sp-upload-area {
    border: 2px dashed var(--sp-border); border-radius: var(--sp-radius-sm);
    padding: 1.5rem; text-align: center; cursor: pointer;
    transition: all var(--sp-transition); margin-bottom: 1rem;
}
.sp-upload-area:hover { border-color: var(--sp-accent); background: var(--sp-accent-dim); }
.sp-upload-area input { display: none; }
.sp-upload-area p { color: var(--sp-text-dim); font-size: 0.85rem; }
.sp-upload-area .sp-upload-icon { color: var(--sp-accent); margin-bottom: 0.5rem; }

/* ─── TOAST ─── */
.sp-toast { position: fixed; bottom: 2rem; right: 2rem; background: var(--sp-surface-2); border: 1px solid var(--sp-border); border-radius: var(--sp-radius-sm); padding: 1rem 1.5rem; display: flex; align-items: center; gap: 0.75rem; font-size: 0.875rem; box-shadow: 0 10px 40px rgba(0,0,0,0.5); z-index: 9999; transform: translateY(120%); transition: transform 0.4s ease; }
.sp-toast.show { transform: translateY(0); }
.sp-toast.success { border-left: 3px solid var(--sp-success); }
.sp-toast.error { border-left: 3px solid var(--sp-danger); }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
    .sp-dashboard { padding: 4.5rem 1.25rem 3rem; }
    .sp-dashboard-header { flex-direction: column; align-items: flex-start; }
    .sp-tabs { overflow-x: auto; }
    .sp-tab { font-size: 0.8rem; padding: 0.6rem 0.75rem; }
    .sp-form-row { grid-template-columns: 1fr; }
    .sp-courses-grid { grid-template-columns: 1fr; }
    .sp-welcome h1 { font-size: 1.35rem; }
    .sp-table { font-size: 0.8rem; }
    .sp-table th, .sp-table td { padding: 0.6rem 0.75rem; }
}