/* ==========================================================================
   Six-Seven Theme - Japanese Urban Calendar
   Version: 1.0
   Updated: 2024-06-08
   Changes:
   - Japanese convenience store aesthetics with 6-7-24 hour culture
   - Kombini blue, rice white, matcha green, and ramen orange palette
   - Fixed button text visibility for better contrast
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&family=Playfair+Display:ital@0;1&display=swap');

:root {
    /* Six-Seven Japanese Palette */
    --six-seven-bg: #F5F5F5;
    --six-seven-text: #2C3E50;
    --six-seven-primary: #FFFFFF;
    --six-seven-secondary: #F8F9FA;
    --six-seven-date-number: #2C3E50;

    /* Kombini Blue */
    --six-seven-blue1: #0066B3;
    --six-seven-blue2: #004C8C;
    --six-seven-blue3: #003366;
    --six-seven-blue4: rgba(0, 102, 179, 0.7);
    --six-seven-blue5: rgba(0, 102, 179, 0.3);

    /* Rice White */
    --six-seven-rice1: #F9F6EF;
    --six-seven-rice2: #F0E9D8;
    --six-seven-rice3: #E0D5BC;
    --six-seven-rice4: rgba(249, 246, 239, 0.7);
    --six-seven-rice5: rgba(249, 246, 239, 0.3);

    /* Matcha Green */
    --six-seven-green1: #88B04B;
    --six-seven-green2: #6B8E4C;
    --six-seven-green3: #4A6C3B;
    --six-seven-green4: rgba(136, 176, 75, 0.7);
    --six-seven-green5: rgba(136, 176, 75, 0.3);

    /* Ramen Orange */
    --six-seven-orange1: #FF9933;
    --six-seven-orange2: #E67E22;
    --six-seven-orange3: #CC6600;
    --six-seven-orange4: rgba(255, 153, 51, 0.7);
    --six-seven-orange5: rgba(255, 153, 51, 0.3);

    /* Tokyo Gray */
    --six-seven-gray1: #BDC3C7;
    --six-seven-gray2: #95A5A6;
    --six-seven-gray3: #7F8C8D;
    --six-seven-gray4: rgba(189, 195, 199, 0.7);
    --six-seven-gray5: rgba(189, 195, 199, 0.3);

    /* Sakura Pink */
    --six-seven-pink1: #FFB7C5;
    --six-seven-pink2: #FF9AAC;
    --six-seven-pink3: #FF7A93;
    --six-seven-pink4: rgba(255, 183, 197, 0.7);
    --six-seven-pink5: rgba(255, 183, 197, 0.3);

    /* Theme Variables */
    --six-seven-shadow: rgba(0, 102, 179, 0.15);
    --six-seven-radius: 4px;
    --six-seven-transition: 0.25s ease;
    --six-seven-hover: #004C8C;
    --six-seven-glow: 0 0 15px rgba(0, 102, 179, 0.15);
    --six-seven-pattern: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.1"><path d="M20,20 L30,20 L30,30 L20,30 Z" fill="%230066B3"/><path d="M60,60 L70,60 L70,70 L60,70 Z" fill="%2388B04B"/><path d="M40,40 L45,40 L45,45 L40,45 Z" fill="%23FF9933"/><circle cx="75" cy="25" r="3" fill="%23FFB7C5"/></svg>');
}

/* ==================== ANIMATIONS ==================== */
@keyframes sixseven-fade {

    0%,
    100% {
        opacity: 0.95;
    }

    50% {
        opacity: 1;
    }
}

@keyframes sixseven-slide {
    from {
        transform: translateY(3px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes sixseven-pulse {

    0%,
    100% {
        box-shadow: 0 0 3px var(--six-seven-shadow);
    }

    50% {
        box-shadow: var(--six-seven-glow);
    }
}

@keyframes sixseven-wave {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 100% 0;
    }
}

@keyframes sixseven-float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

@keyframes sixseven-ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }

    100% {
        transform: scale(1);
        opacity: 0;
    }
}

@keyframes sixseven-shimmer {
    0% {
        background-position: -200% center;
    }

    100% {
        background-position: 200% center;
    }
}

@keyframes sixseven-pulse-light {

    0%,
    100% {
        opacity: 0.7;
    }

    50% {
        opacity: 1;
    }
}

@keyframes sixseven-sway {
    0% {
        transform: translateX(0) translateY(0);
    }

    25% {
        transform: translateX(1px) translateY(1px);
    }

    75% {
        transform: translateX(-1px) translateY(-1px);
    }

    100% {
        transform: translateX(0) translateY(0);
    }
}

@keyframes sixseven-tick {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes sixseven-rise {
    0% {
        transform: scale(0.9);
        opacity: 0.5;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes sixseven-neon {

    0%,
    100% {
        text-shadow: 0 0 5px rgba(0, 102, 179, 0.5);
    }

    50% {
        text-shadow: 0 0 15px rgba(0, 102, 179, 0.8);
    }
}

/* ==================== BASE STYLES ==================== */
.six-seven {
    font-family: 'Montserrat', sans-serif;
    color: var(--six-seven-text);
    line-height: 1.5;
    font-size: 0.95rem;
    background-color: var(--six-seven-bg);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.six-seven::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, var(--six-seven-blue5) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, var(--six-seven-green5) 0%, transparent 40%),
        repeating-linear-gradient(45deg, var(--six-seven-gray5) 0px, var(--six-seven-gray5) 2px, transparent 2px, transparent 8px);
    pointer-events: none;
    z-index: 1;
}

.six-seven .container {
    background: linear-gradient(135deg, var(--six-seven-primary) 0%, var(--six-seven-secondary) 100%);
    padding: 1.5rem;
    border: 1px solid var(--six-seven-gray2);
    box-shadow:
        var(--six-seven-glow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
    position: relative;
    overflow: hidden;
    max-width: 1600px;
    margin: 0 auto;
    border-radius: 20px;
    z-index: 2;
    background-image:
        radial-gradient(circle at 10% 20%, var(--six-seven-blue5) 0%, transparent 30%),
        radial-gradient(circle at 90% 80%, var(--six-seven-pink5) 0%, transparent 30%);
}

.six-seven .container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
            var(--six-seven-blue1) 0%,
            var(--six-seven-green1) 33%,
            var(--six-seven-orange1) 66%,
            var(--six-seven-pink1) 100%);
    animation: sixseven-wave 6s linear infinite;
    background-size: 300% 100%;
}

.six-seven .container::after {
    content: "24/7";
    position: absolute;
    bottom: 10px;
    right: 15px;
    font-size: 1.3rem;
    opacity: 0.15;
    font-weight: 700;
    animation: sixseven-neon 3s ease-in-out infinite;
}

/* ==================== HEADER & TITLE ==================== */
.six-seven #calendar-title {
    font-family: 'Playfair Display', serif;
    color: var(--six-seven-text);
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
    position: relative;
    font-weight: 600;
    font-style: normal;
    text-shadow:
        0 1px 2px rgba(255, 255, 255, 0.8),
        2px 2px 0 rgba(0, 102, 179, 0.2);
    background: linear-gradient(135deg, var(--six-seven-blue1) 0%, var(--six-seven-green1) 50%, var(--six-seven-orange1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: sixseven-shimmer 5s linear infinite;
}

.six-seven #calendar-title::after {
    content: "⏰";
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.3rem;
    opacity: 0.5;
    animation: sixseven-pulse-light 2s ease-in-out infinite;
}

/* ==================== DATE & WEATHER DISPLAY ==================== */
.six-seven #date-weather-container {
    text-align: center;
    margin: 1.5rem 0;
    padding: 1.2rem;
    background: linear-gradient(135deg, var(--six-seven-primary) 0%, var(--six-seven-secondary) 100%);
    border: 1px solid var(--six-seven-gray2);
    border-radius: var(--six-seven-radius);
    position: relative;
    box-shadow:
        0 2px 12px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
    overflow: hidden;
}

.six-seven #date-weather-container::before {
    content: "KONBINI 24H";
    position: absolute;
    top: -8px;
    right: 15px;
    background: linear-gradient(135deg, var(--six-seven-primary) 0%, var(--six-seven-secondary) 100%);
    padding: 0 8px;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--six-seven-blue2);
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    text-transform: uppercase;
    border: 1px solid var(--six-seven-gray2);
    border-radius: 2px;
}

.six-seven #date-weather-container::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--six-seven-blue2), transparent);
}

.six-seven #current-date {
    font-family: 'Playfair Display', serif;
    color: var(--six-seven-text);
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
    font-style: normal;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

.six-seven #today-weather {
    font-family: 'Montserrat', sans-serif;
    color: var(--six-seven-green2);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* ==================== ANALOG CLOCK ==================== */
.six-seven #analog-watch {
    display: flex;
    justify-content: center;
    margin: 1.5rem 0;
}

.six-seven .clock-face {
    width: 150px;
    height: 150px;
    border: 3px solid var(--six-seven-blue2);
    border-radius: 50%;
    position: relative;
    background: linear-gradient(135deg, var(--six-seven-primary) 0%, var(--six-seven-rice1) 100%);
    box-shadow:
        0 4px 15px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
    overflow: hidden;
}

.six-seven .clock-face::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-orange2) 100%);
    border-radius: 50%;
    z-index: 10;
    box-shadow:
        0 0 5px var(--six-seven-shadow),
        inset 0 0 3px rgba(255, 255, 255, 0.5);
}

.six-seven .clock-face::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at center, transparent 60%, var(--six-seven-blue5) 100%),
        repeating-conic-gradient(from 0deg,
            transparent 0deg 5deg,
            var(--six-seven-gray5) 6deg 6deg);
}

.six-seven .hand {
    position: absolute;
    top: 50%;
    transform-origin: 100%;
    transform: rotate(90deg);
    transition: all 0.05s;
    transition-timing-function: cubic-bezier(0.1, 2.7, 0.58, 1);
    z-index: 5;
}

.six-seven .hour-hand {
    width: 35%;
    left: 15%;
    height: 4px;
    background: linear-gradient(90deg, var(--six-seven-blue2) 0%, var(--six-seven-gray2) 100%);
    margin-top: -2px;
    border-radius: 2px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.six-seven .minute-hand {
    width: 45%;
    left: 5%;
    height: 3px;
    background: linear-gradient(90deg, var(--six-seven-green2) 0%, var(--six-seven-rice2) 100%);
    margin-top: -1.5px;
    border-radius: 1.5px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.six-seven .second-hand {
    width: 45%;
    left: 5%;
    height: 2px;
    background: linear-gradient(90deg, var(--six-seven-primary) 0%, var(--six-seven-orange1) 100%);
    margin-top: -1px;
}

/* ==================== CALENDAR TABLE ==================== */
.six-seven table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 6px;
    margin: 1.5rem auto;
    background-color: transparent;
    table-layout: fixed;
}

/* DAY OF WEEK HEADERS */
.six-seven th {
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%);
    color: var(--six-seven-primary) !important;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    padding: 0.8rem 0.4rem;
    border-radius: var(--six-seven-radius);
    position: relative;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.six-seven th::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.4) 100%);
    pointer-events: none;
}

.six-seven th span.full-day-name {
    display: inline;
    position: relative;
    z-index: 1;
}

.six-seven th abbr {
    display: none;
    text-decoration: none;
    border-bottom: none;
}

/* DATE NUMBER STYLES */
.six-seven td {
    background: linear-gradient(135deg, var(--six-seven-primary) 0%, var(--six-seven-rice1) 100%);
    color: var(--six-seven-text);
    padding: 0.8rem;
    border: 1px solid var(--six-seven-gray2);
    height: 80px;
    vertical-align: top;
    transition: all var(--six-seven-transition);
    position: relative;
    border-radius: var(--six-seven-radius);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.8),
        0 1px 5px var(--six-seven-shadow);
}

.six-seven td .date-number {
    color: var(--six-seven-text) !important;
    font-weight: 600;
    font-size: 1.1rem;
    position: absolute;
    top: 6px;
    left: 6px;
    font-family: 'Montserrat', sans-serif;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

.six-seven td:hover {
    background: linear-gradient(135deg, var(--six-seven-rice1) 0%, var(--six-seven-pink1) 100%);
    box-shadow:
        0 4px 15px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
    border-color: var(--six-seven-blue2);
    transform: translateY(-2px);
}

/* Current date highlight */
.six-seven td.current-day {
    background: linear-gradient(135deg, rgba(0, 102, 179, 0.1) 0%, rgba(136, 176, 75, 0.1) 100%);
    border: 1px solid var(--six-seven-blue2);
    animation: sixseven-pulse 4s infinite;
    background-image:
        radial-gradient(circle at 30% 70%, var(--six-seven-orange5) 0%, transparent 50%);
}

.six-seven td.current-day .date-number {
    color: var(--six-seven-blue2) !important;
    font-weight: 700;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.9);
}

.six-seven td.current-day::before {
    content: "🍙";
    position: absolute;
    top: 4px;
    right: 4px;
    z-index: 1;
    font-size: 1rem;
    animation: sixseven-tick 3s ease-in-out infinite;
    opacity: 0.7;
}

/* ==================== EVENT MARKERS ==================== */
.six-seven .event-marker {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 0;
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%);
    margin: 0 1px;
    transition: all var(--six-seven-transition);
    animation: sixseven-pulse 3s ease-in-out infinite;
    position: relative;
    overflow: hidden;
    box-shadow:
        0 0 2px var(--six-seven-shadow),
        0 0 0 1px rgba(255, 255, 255, 0.5);
    transform: rotate(0deg);
}

.six-seven .event-marker::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 2px;
    background-color: var(--six-seven-primary);
    border-radius: 0;
    opacity: 0.9;
}

.six-seven .event-marker:hover {
    transform: scale(1.3);
    background: linear-gradient(135deg, var(--six-seven-orange2) 0%, var(--six-seven-pink2) 100%);
    box-shadow:
        0 0 5px var(--six-seven-shadow),
        0 0 0 1px rgba(255, 255, 255, 0.7);
}

/* ==================== MODAL STYLES ==================== */
.six-seven .modal-content {
    position: relative;
    background: linear-gradient(135deg, var(--six-seven-primary) 0%, var(--six-seven-rice1) 100%);
    border: 1px solid var(--six-seven-gray2);
    padding: 20px;
    color: var(--six-seven-text);
    box-shadow:
        0 10px 30px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    animation: sixseven-slide 0.25s ease-out;
    overflow: hidden;
}

.six-seven .modal-content::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg,
            var(--six-seven-blue1) 0%,
            var(--six-seven-green1) 33%,
            var(--six-seven-orange1) 66%,
            var(--six-seven-pink1) 100%);
    animation: sixseven-wave 5s linear infinite;
    background-size: 200% 100%;
}

.six-seven .modal-content h2 {
    color: var(--six-seven-text);
    font-family: 'Playfair Display', serif;
    font-size: 1.8em;
    margin-bottom: 12px;
    font-weight: 500;
    font-style: normal;
    letter-spacing: 0.02em;
    background: linear-gradient(135deg, var(--six-seven-blue1) 0%, var(--six-seven-green1) 50%, var(--six-seven-orange1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* Modal date display */
.six-seven .modal-date {
    font-family: 'Playfair Display', serif;
    color: var(--six-seven-text);
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 1.2rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--six-seven-gray2);
    font-style: normal;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* Event list */
.six-seven .event-list {
    margin: 1.2rem 0;
    padding: 0;
    list-style: none;
}

.six-seven .event-item {
    background: linear-gradient(135deg, var(--six-seven-rice1) 0%, var(--six-seven-pink1) 100%);
    padding: 0.8rem;
    margin-bottom: 0.8rem;
    border-left: 3px solid var(--six-seven-blue2);
    border-radius: var(--six-seven-radius);
    transition: all var(--six-seven-transition);
    box-shadow:
        0 1px 5px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.six-seven .event-item:hover {
    background: linear-gradient(135deg, rgba(0, 102, 179, 0.1) 0%, rgba(136, 176, 75, 0.1) 100%);
    transform: translateX(3px);
    border-left-color: var(--six-seven-orange2);
    box-shadow:
        0 2px 12px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.95);
}

.six-seven .event-time {
    font-family: 'Montserrat', sans-serif;
    color: var(--six-seven-blue2);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
    display: block;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

.six-seven .event-title {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.4rem;
    color: var(--six-seven-text);
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

.six-seven .event-description {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--six-seven-text);
    opacity: 0.9;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* ==================== BUTTONS & CONTROLS - FIXED VISIBILITY ==================== */
.six-seven .button,
.six-seven .transparent-button {
    border: 1px solid var(--six-seven-blue2);
    color: var(--six-seven-primary) !important;
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%);
    padding: 0.6rem 1.2rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--six-seven-transition);
    position: relative;
    overflow: hidden;
    margin: 0.3rem;
    border-radius: var(--six-seven-radius);
    letter-spacing: 0.02em;
    font-size: 0.9rem;
    box-shadow:
        0 1px 5px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.six-seven .button::before,
.six-seven .transparent-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.six-seven .button:hover::before,
.six-seven .transparent-button:hover::before {
    left: 100%;
}

.six-seven .button:hover,
.six-seven .transparent-button:hover {
    background: linear-gradient(135deg, var(--six-seven-hover) 0%, var(--six-seven-green3) 100%);
    color: var(--six-seven-primary) !important;
    box-shadow:
        0 3px 12px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.3);
}

.six-seven .modal-content button {
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%);
    color: var(--six-seven-primary) !important;
    border: none;
    padding: 8px 16px;
    font-size: 0.95em;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--six-seven-transition);
    letter-spacing: 0.3px;
    font-family: 'Montserrat', sans-serif;
    border-radius: var(--six-seven-radius);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.six-seven .modal-content button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.six-seven .modal-content button:hover::before {
    left: 100%;
}

.six-seven .modal-content button:hover {
    background: linear-gradient(135deg, var(--six-seven-hover) 0%, var(--six-seven-green3) 100%);
    box-shadow:
        0 4px 15px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

/* Close Button */
.six-seven .modal .close-button {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%) !important;
    color: var(--six-seven-primary) !important;
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 26px;
    height: 26px;
    cursor: pointer;
    transition: all var(--six-seven-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: bold;
    box-shadow:
        0 1px 5px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
}

.six-seven .modal .close-button:hover {
    background: linear-gradient(135deg, var(--six-seven-hover) 0%, var(--six-seven-green3) 100%) !important;
    color: var(--six-seven-primary) !important;
    transform: rotate(90deg);
    border-color: rgba(255, 255, 255, 0.5);
}

.six-seven .controls {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin: 1rem 0;
    gap: 0.4rem;
}

/* ==================== THEME SWITCHER ==================== */
.six-seven #theme-switcher-container {
    position: relative;
    margin: 0 0.6rem;
    min-width: 180px;
    z-index: 1000;
}

.six-seven #theme-switcher {
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%);
    color: var(--six-seven-primary) !important;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.6rem 1.8rem 0.6rem 0.8rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    font-weight: 500;
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23FFFFFF'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
    background-size: 0.9rem;
    cursor: pointer;
    transition: all var(--six-seven-transition);
    border-radius: var(--six-seven-radius);
    box-shadow:
        0 1px 5px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.six-seven #theme-switcher option {
    background: var(--six-seven-blue2) !important;
    color: var(--six-seven-primary) !important;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 10px !important;
}

.six-seven #theme-switcher:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow:
        0 0 0 2px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

/* ==================== BACK TO TOP BUTTON ==================== */
.six-seven #backToTopBtn {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 9999;
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    color: var(--six-seven-primary);
    background: linear-gradient(135deg, var(--six-seven-blue2) 0%, var(--six-seven-green2) 100%);
    cursor: pointer;
    transition: all var(--six-seven-transition);
    opacity: 0.9;
    display: none;
    border-radius: var(--six-seven-radius);
    box-shadow:
        0 2px 12px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.six-seven #backToTopBtn:hover {
    background: linear-gradient(135deg, var(--six-seven-hover) 0%, var(--six-seven-green3) 100%);
    opacity: 1;
    transform: translateY(-2px);
    box-shadow:
        0 4px 20px var(--six-seven-shadow),
        inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

/* ==================== FOOTER ==================== */
.six-seven footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--six-seven-gray2);
    color: var(--six-seven-blue2);
    font-size: 0.85rem;
    font-weight: 500;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* ==================== MEDIA QUERIES ==================== */
@media (max-width: 992px) {
    .six-seven .container {
        padding: 1.2rem;
    }

    .six-seven #calendar-title {
        font-size: 1.8rem;
    }

    .six-seven #current-date {
        font-size: 1.3rem;
    }

    .six-seven #today-weather {
        font-size: 0.95rem;
    }

    .six-seven .modal-date {
        font-size: 1.2rem;
    }

    .six-seven .event-title {
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    .six-seven {
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .six-seven .clock-face {
        width: 130px;
        height: 130px;
        border-width: 2px;
    }

    .six-seven th {
        font-size: 0.8rem;
        padding: 0.6rem 0.2rem;
    }

    .six-seven th span.full-day-name {
        display: none;
    }

    .six-seven th abbr {
        display: inline;
    }

    .six-seven td {
        padding: 0.6rem;
        height: 70px;
        font-size: 0.8rem;
    }

    .six-seven td .date-number {
        font-size: 1rem;
        top: 5px;
        left: 5px;
    }

    .six-seven td.current-day::before {
        font-size: 0.9rem;
        top: 3px;
        right: 3px;
    }

    .six-seven #backToTopBtn {
        right: 12px;
        bottom: 12px;
        padding: 0.7rem 1.3rem;
        font-size: 0.85rem;
    }

    .six-seven #theme-switcher {
        padding: 0.5rem 1.5rem 0.5rem 0.6rem;
        font-size: 0.85rem;
        min-width: 160px;
    }

    .six-seven .modal-content {
        padding: 16px;
    }

    .six-seven .event-item {
        padding: 0.7rem;
    }
}

@media (max-width: 576px) {
    .six-seven .container {
        padding: 1rem;
    }

    .six-seven #calendar-title {
        font-size: 1.5rem;
    }

    .six-seven #current-date {
        font-size: 1.2rem;
    }

    .six-seven #today-weather {
        font-size: 0.9rem;
    }

    .six-seven .clock-face {
        width: 110px;
        height: 110px;
        border-width: 2px;
    }

    .six-seven th {
        font-size: 0.75rem;
        padding: 0.5rem 0.15rem;
    }

    .six-seven td {
        padding: 0.5rem;
        height: 60px;
        font-size: 0.75rem;
    }

    .six-seven td .date-number {
        font-size: 0.9rem;
        top: 4px;
        left: 4px;
    }

    .six-seven #theme-switcher {
        min-width: 140px;
        font-size: 0.8rem;
    }

    .six-seven .modal-content {
        padding: 12px;
    }

    .six-seven .modal-date {
        font-size: 1.1rem;
    }

    .six-seven .event-time {
        font-size: 0.85rem;
    }
}

@media (max-width: 400px) {
    .six-seven th {
        font-size: 0.7rem;
        padding: 0.4rem 0.1rem;
    }

    .six-seven td {
        height: 55px;
    }

    .six-seven td .date-number {
        font-size: 0.85rem;
    }

    .six-seven #theme-switcher {
        min-width: 120px;
        font-size: 0.75rem;
    }

    .six-seven .controls {
        flex-direction: column;
        gap: 0.2rem;
    }

    .six-seven .button,
    .six-seven .transparent-button {
        width: 100%;
        margin: 0.15rem 0;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .six-seven {
        --six-seven-blue2: #003366;
        --six-seven-green2: #4A6C3B;
    }

    .six-seven td.current-day {
        border: 2px solid var(--six-seven-blue2);
        background: linear-gradient(135deg, rgba(0, 51, 102, 0.2) 0%, rgba(74, 108, 59, 0.2) 100%);
    }

    .six-seven th {
        background: var(--six-seven-blue2);
    }

    .six-seven #calendar-title,
    .six-seven #current-date,
    .six-seven .event-title,
    .six-seven .event-description,
    .six-seven .modal-date {
        text-shadow: 0 1px 0 rgba(0, 0, 0, 0.3);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

    .six-seven *,
    .six-seven *::before,
    .six-seven *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .six-seven .hand {
        transition: none;
    }

    .six-seven .clock-face::before {
        animation: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .six-seven {
        --six-seven-bg: #1A1E24;
        --six-seven-text: #F0F8FF;
        --six-seven-primary: #2C3E50;
        --six-seven-secondary: #34495E;
        --six-seven-date-number: #F0F8FF;
        --six-seven-shadow: rgba(0, 102, 179, 0.25);
    }

    .six-seven .container,
    .six-seven td {
        box-shadow:
            0 4px 20px rgba(0, 0, 0, 0.3),
            inset 0 0 0 1px var(--six-seven-shadow);
    }

    .six-seven .modal-content {
        box-shadow:
            0 8px 30px rgba(0, 0, 0, 0.4),
            inset 0 0 0 1px var(--six-seven-shadow);
    }

    .six-seven .button,
    .six-seven .transparent-button {
        box-shadow:
            0 1px 5px rgba(0, 0, 0, 0.2),
            inset 0 0 0 1px var(--six-seven-shadow);
    }

    .six-seven #calendar-title,
    .six-seven #current-date,
    .six-seven .event-title,
    .six-seven .event-description,
    .six-seven .modal-date {
        text-shadow: 0 1px 1px rgba(0, 0, 0, 0.5);
    }
}