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

:root {
    --bg-primary: #07070D;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-solid: #111118;
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --glass: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.12);
    --purple: #8B5CF6;
    --purple-light: #A78BFA;
    --purple-glow: rgba(139, 92, 246, 0.15);
    --purple-glow-strong: rgba(139, 92, 246, 0.25);
    --green: #22C55E;
    --yellow: #EAB308;
    --orange: #F97316;
    --red: #EF4444;
    --text-primary: #F0F0F5;
    --text-secondary: #9898A6;
    --text-muted: #5C5C6E;
    --border: rgba(255, 255, 255, 0.06);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Ambient background glow */
body::before {
    content: '';
    position: fixed;
    top: -40%;
    left: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    bottom: -30%;
    right: -20%;
    width: 70%;
    height: 70%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

#app { position: relative; z-index: 1; }

/* === Views === */
.view { display: none; min-height: 100vh; }
.view.active { display: flex; align-items: center; justify-content: center; }
#view-dashboard.active { display: block; padding: 2rem 1rem; }

/* === Landing === */

/* Floating orbs */
.landing-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

.landing-orb-1 {
    width: 500px;
    height: 500px;
    background: rgba(139, 92, 246, 0.12);
    top: -10%;
    left: -5%;
    animation-delay: 0s;
}

.landing-orb-2 {
    width: 400px;
    height: 400px;
    background: rgba(59, 130, 246, 0.08);
    bottom: -15%;
    right: -10%;
    animation-delay: -7s;
    animation-duration: 25s;
}

.landing-orb-3 {
    width: 300px;
    height: 300px;
    background: rgba(168, 85, 247, 0.06);
    top: 40%;
    right: 15%;
    animation-delay: -13s;
    animation-duration: 30s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 35px) scale(1.02); }
}

.landing-container {
    max-width: 720px;
    text-align: center;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.landing-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--glass);
    color: var(--purple-light);
    padding: 0.5rem 1.2rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: var(--green);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.landing-container h1 {
    font-family: 'Sora', var(--font-display);
    font-size: clamp(2.8rem, 8vw, 4.8rem);
    font-weight: 800;
    line-height: 1.02;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
}

.highlight {
    background: linear-gradient(135deg, var(--purple), #C084FC, var(--purple-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.highlight::after {
    content: 'Meta Ads';
    position: absolute;
    left: 0;
    top: 0;
    background: linear-gradient(135deg, var(--purple), #C084FC, var(--purple-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: blur(30px);
    opacity: 0.5;
    z-index: -1;
}

.landing-sub {
    color: var(--text-secondary);
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Stats row */
.landing-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.25rem 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.landing-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
}

.landing-stat-number {
    font-family: 'Sora', var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.landing-stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.landing-stat-divider {
    width: 1px;
    height: 36px;
    background: var(--glass-border);
}

/* Glow button */
.btn-glow {
    position: relative;
}

.btn-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 0.7rem;
    background: linear-gradient(135deg, var(--purple), #C084FC, var(--purple));
    opacity: 0;
    transition: opacity 0.3s;
    z-index: -1;
    filter: blur(12px);
}

.btn-glow:hover::before {
    opacity: 0.6;
}

.landing-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 2.5rem;
    margin-bottom: 0;
}

.feature-pill {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    font-size: 0.75rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.25s;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.feature-pill:hover {
    background: var(--glass-highlight);
    border-color: rgba(139, 92, 246, 0.25);
    color: var(--text-primary);
}

.landing-privacy {
    color: var(--text-muted);
    font-size: 0.78rem;
    margin-top: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
}

.landing-privacy svg {
    opacity: 0.5;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.6rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.25s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--purple), #7C3AED);
    color: #fff;
    box-shadow: 0 4px 24px rgba(139, 92, 246, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #9B6FF7, var(--purple));
    box-shadow: 0 6px 32px rgba(139, 92, 246, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-lg { padding: 1.1rem 2.25rem; font-size: 1.15rem; }

/* === Account Selector === */
.selector-container {
    max-width: 440px;
    width: 100%;
    padding: 2.5rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 1.25rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.selector-container h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.selector-sub {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    appearance: none;
    cursor: pointer;
    transition: all 0.2s;
}

.form-group select:focus {
    outline: none;
    border-color: var(--purple);
    box-shadow: 0 0 0 3px var(--purple-glow);
}

/* === Loading === */
.loading-container { text-align: center; padding: 2rem; }

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--purple);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1.5rem;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-container h2 {
    font-family: var(--font-display);
    margin-bottom: 1.5rem;
}

.loading-steps { display: flex; flex-direction: column; gap: 0.75rem; }

.step {
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: color 0.3s;
}

.step.active { color: var(--purple-light); }
.step.done { color: var(--green); }

/* === Dashboard === */
.dashboard-container {
    max-width: 960px;
    margin: 0 auto;
}

.overall-score-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 1.25rem;
    padding: 2rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 3px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.2);
}

.score-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.score-grade {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.score-meta h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.score-meta p { color: var(--text-secondary); }

/* Data summary */
.data-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.summary-item {
    text-align: center;
}

.summary-value {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.summary-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.summary-campaigns {
    grid-column: 1 / -1;
    text-align: left;
    border-top: 1px solid var(--glass-border);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.summary-campaigns strong {
    color: var(--text-primary);
}

/* Grade colors */
.grade-a { border-color: var(--green); box-shadow: 0 0 20px rgba(34, 197, 94, 0.15); }
.grade-a .score-number, .grade-a .score-grade { color: var(--green); }
.grade-b { border-color: #86EFAC; box-shadow: 0 0 20px rgba(134, 239, 172, 0.1); }
.grade-b .score-number, .grade-b .score-grade { color: #86EFAC; }
.grade-c { border-color: var(--yellow); box-shadow: 0 0 20px rgba(234, 179, 8, 0.1); }
.grade-c .score-number, .grade-c .score-grade { color: var(--yellow); }
.grade-d { border-color: var(--orange); box-shadow: 0 0 20px rgba(249, 115, 22, 0.1); }
.grade-d .score-number, .grade-d .score-grade { color: var(--orange); }
.grade-f { border-color: var(--red); box-shadow: 0 0 20px rgba(239, 68, 68, 0.15); }
.grade-f .score-number, .grade-f .score-grade { color: var(--red); }

/* Wasted spend banner */
.wasted-spend-banner {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 0.75rem;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    color: #FCA5A5;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.wasted-icon { font-size: 1.5rem; }

/* Category grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.25rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: all 0.25s;
}

.category-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--glass-highlight);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.category-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
}

.category-grade {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
}

.score-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 2px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.score-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.6s ease-out;
    box-shadow: 0 0 8px currentColor;
}

.finding {
    font-size: 0.85rem;
    padding: 0.3rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.finding-icon { flex-shrink: 0; }
.finding.severity-good .finding-icon { color: var(--green); }
.finding.severity-warning .finding-icon { color: var(--yellow); }
.finding.severity-critical .finding-icon { color: var(--red); }
.finding.severity-info .finding-icon { color: var(--text-muted); }

/* Charts */
.charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.chart-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 1.5rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.chart-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* CTA */
.cta-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(139, 92, 246, 0.04));
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 1.25rem;
    padding: 2.5rem;
    text-align: center;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.08);
}

.cta-card h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.cta-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* === Responsive === */
@media (max-width: 768px) {
    .overall-score-card { flex-direction: column; text-align: center; }
    .charts-row { grid-template-columns: 1fr; }
    .score-circle { width: 100px; height: 100px; }
    .score-number { font-size: 2rem; }
    .selector-container { margin: 1rem; }
}