/* =============================
   FLIGHT TRACKER — ART DECO SKIN
   ============================= */

/*  Palette */
:root {
    --emerald: #022b2d;
    --emerald-dark: #021818;
    --gold: #d4af37;
    --offwhite: #f5f5f3;
    --chrome-light: #d7d7d7;
    --chrome-dark: #a3a3a3;
    --row-odd: rgba(4, 40, 42, 0.65);
    --row-even: rgba(4, 36, 37, 0.85);

    --heading-font: 'Unica One', sans-serif;
    --body-font: 'Cinzel', serif;
}

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

html, body {
    height: 100%;
    font-family: var(--body-font);
    font-variant: small-caps;
    color: var(--offwhite);
    background: var(--emerald-dark);
    background-image: radial-gradient(#043233 0%, #021818 80%);
}

/*******************************
 *   Art-deco exterior frame   *
 *******************************/
.frame {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2.5rem 3rem 4rem;
    position: relative;

    /* Step-shaped border using multiple shadows */
    background: var(--emerald);
    box-shadow:
        0 0 0 4px var(--gold),                               /* thin gold keyline */
        0 0 0 8px var(--emerald),                            /* inner buffer */
        0 0 0 12px var(--gold),                              /* second gold */
        0 0 0 20px var(--emerald);                           /* outer bulk */
}

/*******************************
 *           Header            *
 *******************************/
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    border-bottom: 3px solid var(--gold);
    padding-bottom: 1rem;
}

.logo {
    font-family: var(--heading-font);
    letter-spacing: 0.05em;
    font-size: 2.75rem;
    color: var(--gold);
    text-shadow: 0 0 6px rgba(212, 175, 55, 0.4);
}

/*  Chrome-style button  */
.btn {
    display: inline-block;
    padding: 0.55rem 1.75rem;
    font-family: var(--body-font);
    font-size: 0.9rem;
    font-weight: 700;
    color: #000;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 40px;
    background-image: linear-gradient(145deg, var(--chrome-light), var(--chrome-dark));
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.65), rgba(255,255,255,0) 40%);
    mix-blend-mode: overlay;
}

.btn:hover {
    filter: brightness(1.15);
}

/*******************************
 *         Flight board        *
 *******************************/
.flight-board {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.flight-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.75rem;
    border: 2px solid var(--gold);
    background: var(--row-odd);
    backdrop-filter: blur(2px);
}

.flight-row:nth-child(even) {
    background: var(--row-even);
}

/********************
 *  Row segments     *
 ********************/
.segment {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    min-width: 185px;
}

/* Times */
.times .label {
    font-size: 0.75rem;
    color: var(--gold);
    letter-spacing: 0.05em;
}

.times .value {
    font-size: 1.35rem;
    font-weight: 700;
}

.times .sub {
    font-size: 0.75rem;
    opacity: 0.75;
}

/* Route with big codes */
.route {
    flex: 1;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    text-align: center;
}

.airport-code {
    font-family: var(--heading-font);
    font-size: 2.2rem;
    color: var(--offwhite);
    letter-spacing: 0.02em;
}

.zig {
    font-size: 1.4rem;
    color: var(--gold);
    margin: 0 0.25rem;
}

.flight-num {
    font-size: 0.9rem;
    opacity: 0.85;
    border-left: 1px solid var(--gold);
    padding-left: 0.65rem;
}

/* Misc info */
.misc {
    align-items: flex-end;
    text-align: right;
}

.airline {
    font-size: 1rem;
    font-weight: 600;
}

.duration {
    font-size: 0.8rem;
    color: var(--gold);
}

.arrival {
    font-size: 0.75rem;
    opacity: 0.75;
}

/*******************************
 *  Responsive adjustments     *
 *******************************/
@media (max-width: 760px) {
    .flight-row {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .segment {
        align-items: center;
        text-align: center;
        min-width: unset;
    }

    .times, .misc {
        flex-direction: row;
        gap: 0.5rem 1.25rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .route {
        order: -1;
    }
}