/* -------------------------------------------------------------
   Oliver Developments - Modern CSS Architecture (Spec 2026)
------------------------------------------------------------- */

@property --card-glow-intensity {
    syntax: "<percentage>";
    inherits: false;
    initial-value: 0%;
}

:root {
    --bg-black: #030408;
    --card-bg: color-mix(in srgb, #0d1527 40%, transparent);
    --card-border: color-mix(in srgb, var(--text-pure) 4%, transparent);

    --text-pure: #ffffff;
    --text-normal: #cbd5e1;
    --text-muted: #64748b;

    --glow-blue: #3b82f6;
    --glow-cyan: #06b6d4;

    --font-sans:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-black);
    color: var(--text-normal);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    color: var(--text-pure);
    text-wrap: balance;
}

p {
    text-wrap: pretty;
}

.space-bg {
    position: fixed;
    inset: -10%;
    background: radial-gradient(
        circle at 70% 20%,
        color-mix(in srgb, #0f2043 40%, transparent) 0%,
        transparent 50%
    );
    z-index: -1;
}

.container {
    max-width: 1040px;
    margin-inline: auto;
    padding-inline: 24px;
}

/* Navigation */
.nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-block: 30px;

    & .nav-logo {
        font-weight: 800;
        font-size: 1.1rem;
        letter-spacing: 2px;

        & span {
            color: var(--glow-blue);
        }
    }

    & .nav-cta {
        color: var(--text-pure);
        text-decoration: none;
        font-size: 0.9rem;
        font-weight: 600;
        padding: 8px 18px;
        border-radius: 20px;
        background-color: color-mix(in srgb, var(--text-pure) 5%, transparent);
        border: 1px solid var(--card-border);
        transition:
            background-color 0.2s ease,
            color 0.2s ease;

        &:hover {
            background-color: var(--text-pure);
            color: var(--bg-black);
        }
    }
}

/* Bento Grid System */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-block-start: 20px;
}

.bento-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition:
        transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
        border-color 0.3s ease,
        box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;

    &:hover {
        transform: translateY(-4px);
        border-color: color-mix(in srgb, var(--glow-blue) 25%, transparent);
        box-shadow:
            0 10px 30px rgba(0, 0, 0, 0.5),
            0 0 40px color-mix(in srgb, var(--glow-blue) 3%, transparent);
    }

    & .tag {
        font-size: 0.65rem;
        font-weight: 700;
        letter-spacing: 2px;
        color: var(--text-muted);
        text-transform: uppercase;
        margin-block-end: 15px;
        display: block;
    }
}

/* Hero-Card auf volle 3 Spalten gesetzt */
.hero-card {
    grid-column: span 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(
        135deg,
        color-mix(in srgb, #0f172a 30%, transparent) 0%,
        color-mix(in srgb, #1e293b 10%, transparent) 100%
    );
    padding-block: 45px;

    & .hero-quote {
        font-size: 2.2rem;
        font-weight: 700;
        line-height: 1.3;
        letter-spacing: -0.03em;
        background: linear-gradient(180deg, #ffffff 30%, #94a3b8 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
}

.bio-card {
    grid-column: span 2;
    & h2 {
        font-size: 1.6rem;
        margin-block-end: 12px;
        letter-spacing: -0.02em;
    }
    & p {
        font-size: 1.05rem;
        line-height: 1.6;
    }
    & strong {
        color: var(--text-pure);
    }
}

.stack-card {
    grid-column: span 1;
}
.tools-card {
    grid-column: span 1;
}
.learning-card {
    grid-column: span 1;
}

.stack-card,
.tools-card,
.learning-card {
    & h3 {
        font-size: 1.2rem;
        margin-block-end: 15px;
    }
}

.tech-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-block-end: 15px;

    & .pill {
        font-size: 0.7rem;
        font-weight: 600;
        padding: 4px 10px;
        border-radius: 6px;
        background: color-mix(in srgb, var(--text-pure) 3%, transparent);
        border: 1px solid color-mix(in srgb, var(--text-pure) 5%, transparent);

        &.py {
            color: #3572a5;
            border-color: color-mix(in srgb, #3572a5 20%, transparent);
        }
        &.django {
            color: #2ba977;
            border-color: color-mix(in srgb, #2ba977 20%, transparent);
        }
        &.angular {
            color: #f43f5e;
            border-color: color-mix(in srgb, #f43f5e 20%, transparent);
        }
        &.ts {
            color: #3174c0;
            border-color: color-mix(in srgb, #3174c0 20%, transparent);
        }
        &.sql {
            color: #a58200;
            border-color: color-mix(in srgb, #a58200 20%, transparent);
        }
        &.math {
            color: var(--glow-cyan);
            border-color: color-mix(in srgb, var(--glow-cyan) 20%, transparent);
        }
    }
}

.compact-list {
    list-style: none;
    font-size: 0.85rem;
    color: var(--text-muted);

    & li {
        margin-block-end: 8px;
        position: relative;
        padding-inline-start: 12px;

        &::before {
            content: "▪";
            position: absolute;
            left: 0;
            color: var(--glow-blue);
            font-size: 0.6rem;
            top: 1px;
        }
    }
}

.card-text {
    font-size: 0.88rem;
    line-height: 1.6;
}

.arrow-list {
    list-style: none;
    font-size: 0.9rem;

    & li {
        margin-block-end: 10px;
        position: relative;
        padding-inline-start: 16px;

        &::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--glow-cyan);
            font-weight: bold;
        }
    }
}

.cta-card {
    grid-column: span 1;
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--glow-blue) 10%, transparent) 0%,
        transparent 100%
    );
    border-color: color-mix(in srgb, var(--glow-blue) 15%, transparent);
    display: flex;
    flex-direction: column;
    justify-content: center;

    & p {
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-block-end: 15px;
    }
    & .cta-button {
        text-decoration: none;
        color: var(--text-pure);
        font-size: 0.9rem;
        font-weight: 600;
        transition: color 0.2s ease;
    }

    &:hover .cta-button {
        color: var(--glow-cyan);
    }
}

.footer {
    text-align: center;
    margin-block-start: 60px;
    padding-block: 30px;
    border-top: 1px solid var(--card-border);
    font-size: 0.8rem;
    color: var(--text-muted);
}

@media (max-width: 900px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-card,
    .bio-card {
        grid-column: span 2;
    }
}

@media (max-width: 600px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }
    .hero-card,
    .bio-card,
    .stack-card,
    .tools-card,
    .learning-card,
    .cta-card {
        grid-column: span 1;
    }
    .hero-card .hero-quote {
        font-size: 1.6rem;
    }
    .bento-item {
        padding: 24px;
    }
}