/* Dark theme overrides for CGPA Calculator to closely match CGPA Goal Planner */

body.cgpa-calculator-page {
    background: #0a0a0f;
    color: #e5e7eb;
	color-scheme: dark;
}

body.cgpa-calculator-page .app-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

/* Background gradient overlay (copied from goal planner) */
.gradient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(118, 75, 162, 0.15) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.gradient-overlay::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 300px;
    background: linear-gradient(to top, #0a0a0f 0%, transparent 100%);
}

/* Header / hero */
body.cgpa-calculator-page header.cgpa-header {
    background: transparent;
    padding: 1.75rem 0 1.25rem;
}

body.cgpa-calculator-page header::before {
    content: none;
}

body.cgpa-calculator-page .header-content {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

body.cgpa-calculator-page .back-link {
    align-self: flex-start;
    margin-bottom: 1.5rem;
    padding: 0.4rem 0.9rem;
    font-size: 0.8rem;
    border-radius: 999px;
    white-space: nowrap;
}

.cgpa-tool-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cgpa-hero {
    margin-top: 0.5rem;
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
    animation: fadeInDown 0.6s ease;
}

.cgpa-hero-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.8);
    color: #ffffff;
    animation: float 3s ease-in-out infinite;
}

.cgpa-hero-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 0.2rem;
    line-height: 1.2;
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.gradient-text {
    background: linear-gradient(135deg, #667eea, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cgpa-hero-subtitle {
    font-size: 1.125rem;
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 480px) {
    .cgpa-hero-title {
        font-size: 2rem;
        line-height: 1.25;
    }
}

body.cgpa-calculator-page .back-link {
    background: rgba(15, 23, 42, 0.9);
    border-color: rgba(148, 163, 184, 0.6);
    color: #e5e7eb;
}

body.cgpa-calculator-page .back-link:hover {
    background: #1e293b;
    border-color: #6366f1;
    color: #e5e7eb;
}

/* Cards - glassy dark like goal planner */
body.cgpa-calculator-page .card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
    color: #e5e7eb;
}

body.cgpa-calculator-page .card-header {
    background: transparent;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

body.cgpa-calculator-page .card-header h2,
body.cgpa-calculator-page .header-title-section h2 {
    color: #e5e7eb;
}

body.cgpa-calculator-page .card-header h2 i,
body.cgpa-calculator-page .header-title-section h2 i {
    margin-right: 10px;
    font-size: 0.9em;
    vertical-align: -0.08em;
}

body.cgpa-calculator-page .card-header p,
body.cgpa-calculator-page .header-title-section p {
    color: #9ca3af;
}

/* Inputs - mimic goal planner input-field style */
body.cgpa-calculator-page .input-wrapper input,
body.cgpa-calculator-page .course-inputs select,
body.cgpa-calculator-page .retake-inputs select,
body.cgpa-calculator-page .form-group input,
body.cgpa-calculator-page .form-group select {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #f9fafb;
    box-shadow: none;
}

body.cgpa-calculator-page select {
    color-scheme: dark;
}

body.cgpa-calculator-page select option,
body.cgpa-calculator-page select optgroup {
    background: #0a0a0f;
    color: #f9fafb;
}

body.cgpa-calculator-page .input-wrapper input::placeholder,
body.cgpa-calculator-page .form-group input::placeholder {
    color: rgba(148, 163, 184, 0.9);
}

body.cgpa-calculator-page .input-wrapper input:focus,
body.cgpa-calculator-page .course-inputs select:focus,
body.cgpa-calculator-page .retake-inputs select:focus,
body.cgpa-calculator-page .form-group input:focus,
body.cgpa-calculator-page .form-group select:focus {
    outline: none;
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
}

body.cgpa-calculator-page .input-group label,
body.cgpa-calculator-page .course-field label,
body.cgpa-calculator-page .form-group label {
    color: #cbd5f5;
}

/* Course items */
body.cgpa-calculator-page .course-item {
    background: rgba(15, 23, 42, 0.92);
    border-color: rgba(148, 163, 184, 0.2);
}

body.cgpa-calculator-page .course-item:hover {
    background: #020617;
    border-color: #6366f1;
}

body.cgpa-calculator-page .course-number {
    color: #e5e7eb;
}

/* Buttons */
body.cgpa-calculator-page .remove-course {
    background: rgba(239, 68, 68, 0.16);
    border-color: rgba(248, 113, 113, 0.9);
    color: #fecaca;
}

body.cgpa-calculator-page .remove-course:hover {
    background: rgba(239, 68, 68, 0.9);
    border-color: rgba(248, 113, 113, 1);
    color: #fee2e2;
}

body.cgpa-calculator-page .btn-outline {
    background: transparent;
    color: #e5e7eb;
    border-color: #334155;
}

body.cgpa-calculator-page .btn-outline:hover {
    background: #1f2937;
    border-color: #6366f1;
}

body.cgpa-calculator-page .btn-secondary {
    background: linear-gradient(135deg, #f97316, #ea580c);
    border-color: transparent;
}

body.cgpa-calculator-page .btn-secondary:hover {
    box-shadow: 0 16px 30px rgba(234, 88, 12, 0.45);
}

body.cgpa-calculator-page .btn-danger {
    /* Softer glow for Reset All button */
    box-shadow: 0 10px 22px rgba(239, 68, 68, 0.32);
}

/* Calculate button */
body.cgpa-calculator-page .calculate-btn {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    box-shadow: 0 22px 45px rgba(79, 70, 229, 0.55);
    border-radius: 1rem;
}

body.cgpa-calculator-page .calculate-btn:hover {
    box-shadow: 0 28px 60px rgba(79, 70, 229, 0.7);
}

/* Results */
body.cgpa-calculator-page .results-card {
    background: radial-gradient(circle at 0% 0%, rgba(56, 189, 248, 0.12), transparent 55%),
                radial-gradient(circle at 100% 100%, rgba(168, 85, 247, 0.18), transparent 55%),
                rgba(15, 23, 42, 0.98);
    border-color: rgba(129, 140, 248, 0.65);
}

body.cgpa-calculator-page .result-card {
    background: rgba(15, 23, 42, 0.96);
    border-color: #1f2937;
}

body.cgpa-calculator-page .result-label {
    color: #9ca3af;
}

body.cgpa-calculator-page .result-value {
    color: #e5e7eb;
}

body.cgpa-calculator-page .result-description {
    color: #94a3b8;
}

/* Modal */
body.cgpa-calculator-page .modal-backdrop {
    background: rgba(15, 23, 42, 0.85);
}

/* Hero animations (match goal planner) */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

body.cgpa-calculator-page .modal-content {
    background: rgba(15, 23, 42, 0.98);
    border: 1px solid #1f2937;
}

body.cgpa-calculator-page .modal-header {
    background: transparent;
    border-bottom-color: #1f2937;
}

body.cgpa-calculator-page .modal-header h3 {
    color: #e5e7eb;
}

body.cgpa-calculator-page .modal-close {
    color: #9ca3af;
}

body.cgpa-calculator-page .modal-close:hover {
    background: #020617;
    color: #e5e7eb;
}

body.cgpa-calculator-page .empty-state {
    color: #64748b;
}

body.cgpa-calculator-page .empty-state-text {
    color: #e5e7eb;
}

body.cgpa-calculator-page .empty-state-subtext {
    color: #9ca3af;
}